A treatise on, or the science of, the preservation of health.

An alkaloid associated with cocaine in coca leaves (Erythroxylon coca), and extracted as a thick, yellow oil, having a pungent taste and odor.

A form of hygrometer having wet and dry bulb thermometers, with an adjustable index showing directly the percentage of moisture in the air, etc.

An instrument for recording automatically the variations of the humidity of the atmosphere.

The science which treats of the fluids of the body.

An instrument for measuring the degree of moisture of the atmosphere.

Of or pertaining to hygrometry; made with, or according to, the hygrometer; as, hygrometric observations.

That branch of physics which relates to the determination of the humidity of bodies, particularly of the atmosphere, with the theory and use of the instruments constructed for this purpose.

Having such a structure as to be diaphanous when moist, and opaque when dry.

Serving to moisten the eye; -- sometimes applied to the lachrymal ducts.

The fluid portion of the cell protoplasm, in opposition to stereoplasm, the solid or insoluble portion. The latter is supposed to be partly nutritive and partly composed of idioplasm.

An instrument which shows whether there is more or less moisture in the atmosphere, without indicating its amount.

Of or pertaining to, or indicated by, the hygroscope; not readily manifest to the senses, but capable of detection by the hygroscope; as, glass is often covered with a film of hygroscopic moisture.

The property possessed by vegetable tissues of absorbing or discharging moisture according to circumstances.

The science or art of comparing or measuring degrees of moisture.

See Haik, and Huke.

A dynasty of Egyptian kings, often called the Shepherd kings, of foreign origin, who, according to the narrative of Manetho, ruled for about 500 years, forming the XVth and XVIth dynasties. It is now considered that the XVIth is merely a double of the XVth dynasty, and that the total period of the six Hyksos kings was little more than 100 years. It is supposed that they were Asiatic Semites.

A large Wealden dinosaur from the Tilgate Forest, England. It was about twenty feet long, protected by bony plates in the skin, and armed with spines.

Presiding over matter.

Same as Hyl/osaur.

Of or pertaining to matter; material; corporeal; as, hylic influences.

A philosopher who treats chiefly of matter; one who adopts or teaches hylism.

A theory which regards matter as the original principle of evil.

Any species of the genus Hylobates; a gibbon, or long-armed ape. See Gibbon.

The piping frog (Hyla Pickeringii), a small American tree frog, which in early spring, while breeding in swamps and ditches, sings with high, shrill, but musical, notes.

Same as Hylotheism.

Same as Hylotheist.

The doctrine that matter is sentient.

One who believes in hylopathism.

Eating green shoots, as certain insects do.

The doctrine of belief that matter is God, or that there is no God except matter and the universe; pantheism. See Materialism.

One who believes in hylotheism.

Of or pertaining to hylozoism.

The doctrine that matter possesses a species of life and sensation, or that matter and life are inseparable.

A believer in hylozoism.

The wild ass of Persia.

A fabulous deity; according to some, the son of Apollo and Urania, according to others, of Bacchus and Venus. He was the god of marriage, and presided over nuptial solemnities.

Same as hymeneal.

A marriage song.

The spore-bearing surface of certain fungi, as that on the gills of a mushroom.

An order of fungi sometimes placed in subclass Homobasidiomycetes.

The production of artificial membranes by contact of two fluids, as albumin and fat, by which the globules of the latter are surrounded by a thin film of the former.

One of the great divisions of fungi, containing those species in which the hymenium is completely exposed.

That part of a fungus which is covered with the hymenium.

One of the Hymenoptera.

An extensive order of insects, including the bees, ants, ichneumons, sawflies, etc.

One of the Hymenoptera.

Same as hymenopteran.

Like, or characteristic of, the Hymenoptera; pertaining to the Hymenoptera.

To sing in praise or adoration.

A collection of hymns; a hymn book.

Relating to hymns, or sacred lyrics.

The singing of hymns.

A writer of hymns.

Hymns, considered collectively; hymnology.

One who writes on the subject of hymns.

The art or act of composing hymns.

A composer or compiler of hymns; one versed in hymnology.

The hymns or sacred lyrics composed by authors of a particular country or period; as, the hymnology of the eighteenth century; also, the collective body of hymns used by any particular church or religious body; as, the Anglican hymnology.

A hymn.

A servant. See Hine.

A division of ganoid fishes, including the gar pikes and bowfins.

Pertaining to or connecting the tongue and hyodean arch; as, the hyoglossal membrane. Of or pertaining to the hyoglossus muscle.

A flat muscle on either side of the tongue, connecting it with the hyoid bone.

The hyoid bone.

Same as Hyoid, a.

Pertaining both to the hyoidean arch and the mandible or lower jaw; as, the hyomandibular bone or cartilage, a segment of the hyoid arch which connects the lower jaw with the skull in fishes. The hyomandibular bone or cartilage.

Between the hyoid bone and the lower jaw, pertaining to them; suprahyoid; submaxillary; as, the hyomental region of the front of the neck.

The second lateral plate in the plastron of turtles; -- called also hyosternum.

An alkaloid found with hyoscyamine (with which it is also isomeric) in henbane, and extracted as a white, amorphous, semisolid substance.

An alkaloid found in henbane (Hyoscyamus niger), and regarded as its active principle. It is also found with other alkaloids in the thorn apple and deadly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc.

A genus of poisonous plants of the Nightshade family; henbane.

Between the hyoid bone and the sternum, or pertaining to them; infrahyoid; as, the hyosternal region of the neck. Pertaining to the hyosternum of turtles.

See Hyoplastron.

Having the mandible suspended by the hyomandibular, or upper part of the hyoid arch, as in fishes, instead of directly articulated with the skull as in mammals; -- said of the skull.

To make melancholy.

A figure consisting of a transference of attributes from their proper subjects to others. Thus Virgil says, /dare classibus austros,/ to give the winds to the fleets, instead of dare classibus austris, to give the fleets to the winds.

See Allelomorph.

A fruit consisting in large part of a receptacle, enlarged below the calyx, as in the Calycanthus, the rose hip, and the pear.

A process, or other element, of a vertebra developed from the ventral side of the centrum, as h/mal spines, and chevron bones.

Situated below an artery; applied esp. to the branches of the bronchi given off below the point where the pulmonary artery crosses the bronchus.

A shield-bearer or armor-bearer.

Beneath the axis of the skeleton; subvertebral; hyposkeletal.

A throw in which the wrestler lifts his opponent from the ground, swings him to one side, knocks up his nearer thigh from the back with the knee, and throws him on his back.

Exhibiting hyperactivity.

An unusually high level of activity; -- used especially with respect to children who move around frequently and do not sit still very long, most noticeably in school. It is sometimes associated with attention deficit disorder.

A superabundance or congestion of blood in an organ or part of the body.

A state of exalted or morbidly increased sensibility of the body, or of a part of it.

A lateral and backward-projecting process on the dorsal side of a vertebra.

One who holds a shield over another; hence, a defender.

Of, pertaining to, or using a pressure that is greater than normal atmospheric pressure; as, a hyperbaric chamber, where divers may decompress slowly to avoid the bends.

Of or pertaining to an hyperbaton; transposed; inverted.

A figurative construction, changing or inverting the natural order of words or clauses; as, /echoed the hills/ for /the hills echoed./

A curve formed by a section of a cone, when the cutting plane makes a greater angle with the base than the side of the cone makes. It is a plane curve such that the difference of the distances from any point of it to two fixed points, called foci, is equal to a given distance. See Focus. If the cutting plane be produced so as to cut the opposite cone, another curve will be formed, which is also an hyperbola. Both curves are regarded as branches of the same hyperbola. See Illust. of Conic section, and Focus.

A figure of speech in which the expression is an evident exaggeration of the meaning intended to be conveyed, or by which things are represented as much greater or less, better or worse, than they really are; a statement exaggerated fancifully, through excitement, or for effect.

Belonging to the hyperbola; having the nature of the hyperbola.

In the form of an hyperbola.

Having the form, or nearly the form, of an hyperbola.

The use of hyperbole.

One who uses hyperboles.

To state or represent hyperbolically.

Having some property that belongs to an hyperboloid or hyperbola.

One of the people who lived beyond the North wind, in a land of perpetual sunshine.

Having an excessive proportion of carbonic acid; -- said of bicarbonates or acid carbonates.

Having a syllable or two beyond measure; as, a hypercatalectic verse.

See Perchloric.

The condition of having an unusual intensity of color.

Hypercritical.

Over critical; unreasonably or unjustly critical; carping; captious.

In a hypercritical manner.

To criticise with unjust severity; to criticise captiously.

Excessive criticism, or unjust severity or rigor of criticism; zoilism.

A mathematical object existing in more than three dimensions, analogous to the cube in that each two-dimensional facet of the surface is a square; a generalization of a cube in more than three dimensions.

Excessive dicrotic; as, a hyperdicrotic pulse.

A hyperdicrotic condition.

Hyperdicrotic.

Veneration or worship given to the Virgin Mary as the most exalted of mere creatures; higher veneration than dulia.

Hyperdulia.

A substance which can form one of a pair of hypergolic substances. See hypergolic.

Igniting spontaneously when mixed together; -- used of pairs of substances which react violently with evolution of heat when mixed, as for example hydrazine and nitrogen tetroxide. Such combinations of substances are convenient for use in liquid-fueled rockets, as they do not require a source of ignition.