A river of Hades whose waters when drunk caused forgetfulness of the past.

Of or pertaining to Lethe; resembling in effect the water of Lethe.

Caused by Lethe.

Sulphuric ether used as an an/sthetic agent.

To subject to the influence of letheon.

Deadly; bringing death or destruction.

Lethean.

To let; to hinder. See Let, to hinder.

To impress with letters; to mark with letters or words; as, a book gilt and lettered.

to send a letter-bomb to.

A bomb disguised as a letter and sent through the mail, usually rigged to explode and kill or harm the recipient when opened.

correct to the last detail; especially being in or following the exact words; as, a letter-perfect rendition of the soliloquy.

a postcard that folds so that the message is inside.

Literate; educated; versed in literature.

One who makes, inscribes, or engraves, alphabetical letters.

See Letter{8}, above.

The act or business of making, or marking with, letters, as by cutting or painting.

Not having a letter.

See Lecturn.

Print; letters and words impressed on paper or other material by types; -- often used of the reading matter in distinction from the illustrations.

Letters; literature.

The beautiful and highly elastic wood of a tree of the genus Brosimum (Brosimum Aubletii), found in Guiana; -- so called from black spots in it which bear some resemblance to hieroglyphics; also called snakewood, and leopardwood. It is much used for bows and for walking sticks.

Of or pertaining to the Letts; Lettish. Of or pertaining to a branch of the Slavic family, subdivided into Lettish, Lithuanian, and Old Prussian. The language of the Letts; Lettish. The language of the Lettic race, including Lettish, Lithuanian, and Old Prussian.

Of or pertaining to the Letts. The language spoken by the Letts. See Lettic.

See Letterure.

An Indo-European people, allied to the Lithuanians and Old Prussians, and inhabiting a part of the Baltic provinces of Russia.

A composite plant of the genus Lactuca (Lactuca sativa), the leaves of which are used as salad. Plants of this genus yield a milky juice, from which lactucarium is obtained. The commonest wild lettuce of the United States is Lactuca Canadensis.

Electuary.

Same as Leuco-.

A combining form signifying white, colorless; specif. (Chem.), denoting an extensive series of colorless organic compounds, obtained by reduction from certain other colored compounds; as, leucaniline, leucaurin, etc.

A genus of evergreen shrubs from the Cape of Good Hope, having handsome foliage. Leucadendron argenteum is the silverboom of the colonists.

A colorless, crystalline, organic base, obtained from rosaniline by reduction, and also from other sources. It forms colorless salts.

See Leukemia.

a naturally occurring alpha-amino acid ((CH3)2CH.CH2.CH(NH2)-COOH), one of the building units of almost all proteins of living organisms, both animal and vegetable. It is one of the essential amino acids (not synthesized by the human body, a required component for proper nutrition), and is hydrophobic in character when bound in proteins. In isolated form it is a white, crystalline, zwitterionic substance formed, e. g. by the decomposition of proteins by pancreatic digestion, by the action of boiling dilute mineral acid, or by putrefaction. Chemically it is to be considered as amido-caproic acid. It occurs as two optical isomers, the L- and D-forms. The L-form, L-leucine, is the natural form, present in most proteins.

Pertaining to, or designating, an acid obtained from leucin, and called also oxycaproic acid.

A genus of freshwater fishes including the dace (Leuciscus leuciscus).

Containing leucite; as, leucitic rocks.

The trapezohedron or tetragonal trisoctahedron; -- so called as being the form of the mineral leucite.

A colorless corpuscle, as one of the white blood corpuscles, or those found in lymph, marrow of bone, connective tissue, etc.

Same as leukemia.

The formation of leucocytes.

White and black; -- said of a white animal of a black species, or the albino of the negro race.

An albino.

A nitrogenous organic base from coal tar, and identical with quinoline. Cf. Quinoline.

A white opacity in the cornea of the eye; -- called also albugo.

An animal base or alkaloid, appearing in the tissue during life; hence, a vital alkaloid, as distinguished from a ptomaine or cadaveric poison.

Pertaining to, or designating, a complex organic acid, obtained as a yellowish white gum by the oxidation of croconic acid.

The state of an albino, or of a white child of black parents.

A mineral of a greenish yellow color; it is a silicate of glucina, lime, and soda with fluorine. Called also leucophanite.

A dropsical habit of body, or the commencement of anasarca; paleness, with viscid juices and cold sweats.

Having a dropsical habit of body, with a white bloated skin.

A colorless substance isomeric with chlorophyll, contained in parts of plants capable of becoming green.

Having white or silvery foliage.

One of certain very minute whitish or colorless granules occurring in the protoplasm of plants and supposed to be the nuclei around which starch granules will form.

A mineral of a color between white and steel-gray, with a metallic luster, and consisting chiefly of arsenic and iron.

A discharge of a white, yellowish, or greenish, viscid mucus, resulting from inflammation or irritation of the membrane lining the genital organs of the female; the whites.

A large antelope of North Africa (Oryx leucoryx), allied to the gemsbok.

An instrument, devised by Professor Helmholtz, for testing the color perception of the eye, or for comparing different lights, as to their constituent colors or their relative whiteness.

Like or pertaining to the Leucosoidea, a tribe of marine crabs including the box crab or Calappa.

The inner corona.

White; -- applied to albinos, from the whiteness of their skin and hair.

A nearly opaque white mineral, in part identical with titanite, observed in some igneous rocks as the result of the alteration of titanic iron.

A disease in which the white corpuscles of the blood are largely increased in number, and there is enlargement of the spleen, or the lymphatic glands; formerly called leucocythaemia. It is due to a cancer of the bone marrow, and results in anemia and increased susceptibility to infectious disease.

See Luke, etc.

See Leucoplast.

A goddess who protected newborn infants.

To run away from one's debts; to decamp.

A strong easterly wind peculiar to the Mediterranean.

A native or inhabitant of the Levant.

A writ of execution at common law.

The act of raising; elevation; upward motion, as that produced by the action of a levator muscle.

A muscle that serves to raise some part, as the lip or the eyelid.

To grant; -- used esp. in exclamations or prayers followed by a dependent clause.

A dry sirocco of Spain.

To keep within a channel by means of levees; as, to levee a river.

See Levy in mass, under Levy, n.

Allowable; permissible; lawful.

To be level; to be on a level with, or on an equality with, something; hence, to accord; to agree; to suit.

One who, or that which, levels.

exercising or showing good judgment or common sense; sensible.

The act or operation of making level.

The disposition or endeavor to level all distinctions of rank in society.

In an even or level manner.

The state or quality of being level.

Lightning.

A rigid piece which is capable of turning about one point, or axis (the fulcrum), and in which are two or more other points where forces are applied; -- used for transmitting and modifying force and motion. Specif., a bar of metal, wood, or other rigid substance, used to exert a pressure, or sustain a weight, at one point of its length, by receiving a force or power at a second, and turning at a third on a fixed point called a fulcrum. It is usually named as the first of the six mechanical powers, and is of three kinds, according as either the fulcrum F, the weight W, or the power P, respectively, is situated between the other two, as in the figures.

The action of a lever; mechanical advantage gained by the lever.

A hare in the first year of its age.

A lark.

The American hop hornbeam (Ostrya Virginica), a small tree with very tough wood.

A leafy shelter; a place covered with foliage.

A trumpet call for rousing soldiers; a reveille.

Fit to be levied; capable of being assessed and collected; as, sums leviable by course of law.

One who levies.

Capable of being levigated.

Made smooth, as if polished.

The act or operation of levigating.

Lightning.

A swift hound.

A husband's brother; -- used in reference to levirate marriages.

Of, pertaining to, or in accordance with, a law of the ancient Israelites and other tribes and races, according to which a woman, whose husband died without issue, was married to the husband's brother.

Levirate marriage or marriages.

A group of birds, including the hornbills, kingfishers, and related forms.

To make buoyant; to cause to float in the air; as, to levitate a table.

One of the tribe or family of Levi; a descendant of Levi; esp., one subordinate to the priests (who were of the same tribe) and employed in various duties connected with the tabernacle first, and afterward the temple, such as the care of the building, bringing of wood and other necessaries for the sacrifices, the music of the services, etc.

Of or pertaining to a Levite or the Levites.

After the manner of the Levites; in accordance with the levitical law.

The third canonical book of the Old Testament, containing the laws and regulations relating to the priests and Levites among the Hebrews, or the body of the ceremonial law.

The quality of weighing less than something else of equal bulk; relative lightness, especially as shown by rising through, or floating upon, a contiguous substance; buoyancy; -- opposed to gravity.

A prefix from L. laevus Pertaining to, or toward, the left; as, levorotatory. Turning the plane of polarized light to the left; as, levotartaric acid; levoracemic acid; levogyratory crystals, etc.

A substance used as a therapy for Parkinson's Disease; the L form of Dopa; L-dihydroxyphenylalanine; L-hydroxytyrosine (C9H11NO4); also called L-dopa. In the body it is converted by the enzyme dopa-decarboxylase into dopamine, the form in which it is active in the brain, affecting neural impulse transmission.

Turning or twisting the plane of polarization of light towards the left, as levulose, levotartaric acid, etc.; levorotatory.

Same as levorotatory.

Rotation in the direction of an outgoing right-handed screw; counter-clockwise rotation; -- applied chiefly to the turning of the plane of polarization of light.

Turning or rotating the plane of polarization of light towards the left; -- applied to crystals and compounds exhibiting optical activity, such as levulose, left-handed quartz crystals, etc. Opposite of dextrorotatory.

A substance resembling dextrin, obtained from the bulbs of the dahlia, the artichoke, and other sources, as a colorless, spongy, amorphous material. It is so called because by decomposition it yields levulose.

Pertaining to, or denoting, an acid (called also acetyl-propionic acid), C5H8O3, obtained by the action of dilute acids on various sugars (as levulose).

An unfermentable carbohydrate obtained by gently heating levulose.

A sirupy variety of sugar, rarely obtained crystallized, occurring widely in honey, ripe fruits, etc., and hence called also fruit sugar; also called fructose. Chemical formula: C6H12O6. It is called levulose, because it rotates the plane of polarization of light to the left, in contrast to dextrose, the other product of the hydrolysis of sucrose.

To seize property, real or personal, or subject it to the operation of an execution; to make a levy; as, to levy on property; the usual mode of levying, in England, is by seizing the goods.