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Amphibrach

A foot of three syllables, the middle one long, the first and last short (/ -- /); as, h/b/r/. In modern prosody the accented syllable takes the place of the long and the unaccented of the short; as, pro-phet/ic.

Amphichroic

Exhibiting or producing two colors, as substances which in the color test may change red litmus to blue and blue litmus to red.

Amphicome

A kind of figured stone, rugged and beset with eminences, anciently used in divination.

Amphictyonic

Of or pertaining to the Amphictyons or their League or Council; as, an Amphictyonic town or state; the Amphictyonic body.

Amphictyons

Deputies from the confederated states of ancient Greece to a congress or council. They considered both political and religious matters.

Amphictyony

A league of states of ancient Greece; esp. the celebrated confederation known as the Amphictyonic Council. Its object was to maintain the common interests of Greece.

Amphid

A salt of the class formed by the combination of an acid and a base, or by the union of two oxides, two sulphides, selenides, or tellurides, as distinguished from a haloid compound.

Amphidisc

A peculiar small siliceous spicule having a denticulated wheel at each end; -- found in freshwater sponges.

Amphidromical

Pertaining to an Attic festival at the naming of a child; -- so called because the friends of the parents carried the child around the hearth and then named it.

Amphigamous

Having a structure entirely cellular, and no distinct sexual organs; -- a term applied by De Candolle to the lowest order of plants.

Amphigean

Extending over all the zones, from the tropics to the polar zones inclusive.

Amphigen

An element that in combination produces amphid salt; -- applied by Berzelius to oxygen, sulphur, selenium, and tellurium.

Amphigenous

Increasing in size by growth on all sides, as the lichens.

Amphigonic

Pertaining to amphigony; sexual; as, amphigonic propagation.

Amphigoric

Nonsensical; absurd; pertaining to an amphigory.

Amphigory

A nonsense verse; a rigmarole, with apparent meaning, which on further attention proves to be meaningless.

Amphimacer

A foot of three syllables, the middle one short and the others long, as in c/st/t/s.

Amphineura

A division of Mollusca remarkable for the bilateral symmetry of the organs and the arrangement of the nerves.

Amphioxus

A fishlike creature (Amphioxus lanceolatus), two or three inches long, found in temperature seas; -- also called the lancelet. Its body is pointed at both ends. It is the lowest and most generalized of the vertebrates, having neither brain, skull, vertebr/, nor red blood. It forms the type of the group Acrania, Leptocardia, etc.

Amphipneust

One of a tribe of Amphibia, which have both lungs and gills at the same time, as the proteus and siren.

Amphipoda

A numerous group of fourteen -- footed Crustacea, inhabiting both fresh and salt water. The body is usually compressed laterally, and the anterior pairs or legs are directed downward and forward, but the posterior legs are usually turned upward and backward. The beach flea is an example. See Tetradecapoda and Arthrostraca.

Amphiprostyle

Doubly prostyle; having columns at each end, but not at the sides. An amphiprostyle temple or edifice.

Amphirhina

A name applied to the elasmobranch fishes, because the nasal sac is double.

Amphisbaena

A fabled serpent with a head at each end, moving either way.

Amphisbaenoid

Like or pertaining to the lizards of the genus Amphisb/na.

Amphiscians Amphiscii

The inhabitants of the tropic, whose shadows in one part of the year are cast to the north, and in the other to the south, according as the sun is south or north of their zenith.

Amphistomous

Having a sucker at each extremity, as certain entozoa, by means of which they adhere.

Amphistylic

Having the mandibular arch articulated with the hyoid arch and the cranium, as in the cestraciont sharks; -- said of a skull.

Amphitrocha

A kind of annelid larva having both a dorsal and a ventral circle of special cilia.

Amphitropous Amphitropal

Having the ovule inverted, but with the attachment near the middle of one side; half anatropous.

Amphiuma

A genus of amphibians, inhabiting the Southern United States, having a serpentlike form, but with four minute limbs and two persistent gill openings; the Congo snake.

Amphopeptone

A product of gastric digestion, a mixture of hemipeptone and antipeptone.

Amphora

Among the ancients, a two-handled vessel, tapering at the bottom, used for holding wine, oil, etc.

Amphoral

Pertaining to, or resembling, an amphora.

amphoric

Resembling a sound like that produced by blowing into an empty bottle; especially, a respiratory sound heard over cavities in the lungs during percussion and auscultation; as, amphoric respiration or resonance.

amphotericin B amphotericin

an antibiotic and antifungal agent (C47H73NO17), produced by a strain of Streptomyces nodosus. It is one of a class of polyene macrolide antibiotics effective against fungal infections. It has a molecular weight of 924.11; it is soluble in oganic solvents but only slightly soluble in water.

ampicillin

a semisynthetic penicillin which can be considered as the common benzylpenicillin containing an amino group at the alpha benzyl position.

Ample

Large; great in size, extent, capacity, or bulk; spacious; roomy; widely extended.

Amplectant

Clasping a support; as, amplectant tendrils.

Ampleness

The state or quality of being ample; largeness; fullness; completeness.

Amplexicaul

Clasping or embracing a stem, as the base of some leaves.

Ampliate

Having the outer edge prominent; said of the wings of insects.

Ampliative

Enlarging a conception by adding to that which is already known or received.

Amplification

The act of amplifying or enlarging in dimensions; enlargement; extension.

Amplitude

State of being ample; extent of surface or space; largeness of dimensions; size.

ampule

a small glass bottle which has been or can be sealed hermetically by application of flame to a narrow opening at the top.

Ampulla

A narrow-necked vessel having two handles and bellying out like a jug.

Ampullaceous

Like a bottle or inflated bladder; bottle-shaped; swelling.

Amputate

To prune or lop off, as branches or tendrils.

Amputation

The act of amputating; esp. the operation of cutting off a limb or projecting part of the body.

Ampyx

A woman's headband (sometimes of metal), for binding the front hair.

Amrita

Immortality; also, the nectar conferring immortality. Ambrosial; immortal.

Amsonia

a genus of herbs and subshrubs with milky juice and showy bluish flowers; native from Europe to Asia Minor to Japan and North America.

Amsterdam

A large city which is an industrial center and the official capital of The Netherlands. Population (2000) = 724,096.

Amt

An administrative territorial division in Denmark and Norway.

Amuck

In a frenzied and reckless manner.

Amulet

An ornament, gem, or scroll, or a package containing a relic, etc., worn as a charm or preservative against evils or mischief, such as diseases and witchcraft, and generally inscribed with mystic forms or characters. [Also used figuratively.]

Amuletic

Of or pertaining to an amulet; operating as a charm.

Amuse

To muse; to mediate.

Amusette

A light field cannon, or stocked gun mounted on a swivel.

Amusing

Giving amusement; diverting; as, an amusing story.

Amusive

Having power to amuse or entertain the mind; fitted to excite mirth.

Amvis

An explosive consisting of ammonium nitrate, a derivative of nitrobenzene, chlorated napthalene, and wood meal.

amyelous

Characterized by lack of the spinal cord.

amygdalate

Pertaining to, resembling, or made of, almonds.

Amygdalate

An emulsion made of almonds; milk of almonds.

amygdalic

Of or pertaining to almonds; derived from amygdalin; as, amygdalic acid.

amygdalic acid

An organic acid (C6H5.CH(OH).COOH) extracted from bitter almonds; called also mandelic acid and /-Hydroxybenzeneacetic acid.

amygdalin

A glucoside extracted from bitter almonds as a white, crystalline substance.

Amygdaline

Of, pertaining to, or resembling, almonds.

Amygdaloid

A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.

Amyl

A univalent hydrocarbon radical, C5H11, of the paraffine series found in amyl alcohol or fusel oil, etc.

Amylaceous

Pertaining to starch; of the nature of starch; starchy.

Amylate

A compound of the radical amyl with oxygen and a positive atom or radical.

Amylene

One of a group of metameric hydrocarbons, C5H10, of the ethylene series. The colorless, volatile, mobile liquid commonly called amylene is a mixture of different members of the group.

Amylic

Pertaining to, or derived from, amyl; as, amylic ether.

Amylobacter

A micro/rganism (Bacillus amylobacter) which develops in vegetable tissue during putrefaction.

Amylogen

That part of the starch granule or granulose which is soluble in water.

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