Webster's Unabridged Dictionary - Letter A - Page 16

Achromatized (imp. & p. p.) of Achromatize

Achromatizing (p. pr. & vb. n.) of Achromatize

Achromatize (v. t.) To deprive of color; to make achromatic.

Achromatopsy (n.) Color blindness; inability to distinguish colors; Daltonism.

Achronic (a.) See Acronyc.

Achroodextrin (n.) Dextrin not colorable by iodine. See Dextrin.

Achroous (a.) Colorless; achromatic.

Achylous (a.) Without chyle.

Achymous (a.) Without chyme.

Aciculae (pl. ) of Acicula

Acicula (n.) One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.

Acicular (a.) Needle-shaped; slender like a needle or bristle, as some leaves or crystals; also, having sharp points like needless.

Aciculate (a.) Alt. of Aciculated

Aciculated (a.) Furnished with aciculae.

Aciculated (a.) Acicular.

Aciculated (a.) Marked with fine irregular streaks as if scratched by a needle.

Aciculiform (a.) Needle-shaped; acicular.

Aciculite (n.) Needle ore.

Acid (a.) Sour, sharp, or biting to the taste; tart; having the taste of vinegar: as, acid fruits or liquors. Also fig.: Sour-tempered.

Acid (a.) Of or pertaining to an acid; as, acid reaction.

Acid (n.) A sour substance.

Acid (n.) One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also characterized by the power of destroying the distinctive properties of alkalies or bases, combining with them to form salts, at the same time losing their own peculiar properties. They all contain hydrogen, united with a more negative element or radical, either alone, or more generally with oxygen, and take their names from this negative element or radical. Those which contain no oxygen are sometimes called hydracids in distinction from the others which are called oxygen acids or oxacids.

Acidic (a.) Containing a high percentage of silica; -- opposed to basic.

Acidiferous (a.) Containing or yielding an acid.

Acidifiable (a.) Capable of being acidified, or converted into an acid.

Acidific (a.) Producing acidity; converting into an acid.

Acidification (n.) The act or process of acidifying, or changing into an acid.

Acidifier (n.) A simple or compound principle, whose presence is necessary to produce acidity, as oxygen, chlorine, bromine, iodine, etc.

Acidified (imp. & p. p.) of Acidify

Acidifying (p. pr. & vb. n.) of Acidify

Acidify (v. t.) To make acid; to convert into an acid; as, to acidify sugar.

Acidify (v. t.) To sour; to imbitter.

Acidimeter (n.) An instrument for ascertaining the strength of acids.

Acidimetry (n.) The measurement of the strength of acids, especially by a chemical process based on the law of chemical combinations, or the fact that, to produce a complete reaction, a certain definite weight of reagent is required.

Acidity (n.) The quality of being sour; sourness; tartness; sharpness to the taste; as, the acidity of lemon juice.

Acidly (adv.) Sourly; tartly.

Acidness (n.) Acidity; sourness.

Acidulated (imp. & p. p.) of Acidulate

Acidulating (p. pr. & vb. n.) of Acidulate

Acidulate (v. t.) To make sour or acid in a moderate degree; to sour somewhat.

Acidulent (a.) Having an acid quality; sour; acidulous.

Acidulous (a.) Slightly sour; sub-acid; sourish; as, an acidulous tincture.

Acierage (n.) The process of coating the surface of a metal plate (as a stereotype plate) with steellike iron by means of voltaic electricity; steeling.

Aciform (a.) Shaped like a needle.

Acinaceous (a.) Containing seeds or stones of grapes, or grains like them.

Acinaces (n.) A short sword or saber.

Acinaciform (a.) Scimeter-shaped; as, an acinaciform leaf.

Acinesia (n.) Same as Akinesia.

Acinetae (n. pl.) A group of suctorial Infusoria, which in the adult stage are stationary. See Suctoria.

Acinetiform (a.) Resembling the Acinetae.

Aciniform (a.) Having the form of a cluster of grapes; clustered like grapes.

Aciniform (a.) Full of small kernels like a grape.

Acinose (a.) Alt. of Acinous

Acinous (a.) Consisting of acini, or minute granular concretions; as, acinose or acinous glands.

Acini (pl. ) of Acinus

Acinus (n.) One of the small grains or drupelets which make up some kinds of fruit, as the blackberry, raspberry, etc.

Acinus (n.) A grapestone.

Acinus (n.) One of the granular masses which constitute a racemose or compound gland, as the pancreas; also, one of the saccular recesses in the lobules of a racemose gland.

Acipenser (n.) A genus of ganoid fishes, including the sturgeons, having the body armed with bony scales, and the mouth on the under side of the head. See Sturgeon.

Aciurgy (n.) Operative surgery.

Acknow (v. t.) To recognize.

Acknow (v. t.) To acknowledge; to confess.

Acknowledged (imp. & p. p.) of Acknowledge

Acknowledging (p. pr. & vb. n.) of Acknowledge

Acknowledge (v. t.) To of or admit the knowledge of; to recognize as a fact or truth; to declare one's belief in; as, to acknowledge the being of a God.

Acknowledge (v. t.) To own or recognize in a particular character or relationship; to admit the claims or authority of; to give recognition to.

Acknowledge (v. t.) To own with gratitude or as a benefit or an obligation; as, to acknowledge a favor, the receipt of a letter.

Acknowledge (v. t.) To own as genuine; to assent to, as a legal instrument, to give it validity; to avow or admit in legal form; as, to acknowledgea deed.

Acknowledgedly (adv.) Confessedly.

Acknowledger (n.) One who acknowledges.

Acknowledgment (n.) The act of acknowledging; admission; avowal; owning; confession.

Acknowledgment (n.) The act of owning or recognized in a particular character or relationship; recognition as regards the existence, authority, truth, or genuineness.

Acknowledgment (n.) The owning of a benefit received; courteous recognition; expression of thanks.

Acknowledgment (n.) Something given or done in return for a favor, message, etc.

Acknowledgment (n.) A declaration or avowal of one's own act, to give it legal validity; as, the acknowledgment of a deed before a proper officer. Also, the certificate of the officer attesting such declaration.

Aclinic (a.) Without inclination or dipping; -- said the magnetic needle balances itself horizontally, having no dip. The aclinic line is also termed the magnetic equator.

Acme (n.) The top or highest point; the culmination.

Acme (n.) The crisis or height of a disease.

Acme (n.) Mature age; full bloom of life.

Acne (n.) A pustular affection of the skin, due to changes in the sebaceous glands.

Acnodal (a.) Pertaining to acnodes.

Acnode (n.) An isolated point not upon a curve, but whose coordinates satisfy the equation of the curve so that it is considered as belonging to the curve.

Acock (adv.) In a cocked or turned up fashion.

Acockbill (adv.) Hanging at the cathead, ready to let go, as an anchor.

Acockbill (adv.) Topped up; having one yardarm higher than the other.

Acold (a.) Cold.

Acologic (a.) Pertaining to acology.

Acology (n.) Materia medica; the science of remedies.

Acolothist (n.) See Acolythist.

Acolyctine (n.) An organic base, in the form of a white powder, obtained from Aconitum lycoctonum.

Acolyte (n.) One who has received the highest of the four minor orders in the Catholic church, being ordained to carry the wine and water and the lights at the Mass.

Acolyte (n.) One who attends; an assistant.

Acolyth (n.) Same as Acolyte.

Acolythist (n.) An acolyte.

Aconddylose (a.) Alt. of Acondylous

Acondylous (a.) Being without joints; jointless.

Aconital (a.) Of the nature of aconite.

Aconite (n.) The herb wolfsbane, or monkshood; -- applied to any plant of the genus Aconitum (tribe Hellebore), all the species of which are poisonous.

Aconite (n.) An extract or tincture obtained from Aconitum napellus, used as a poison and medicinally.

Aconitia (n.) Same as Aconitine.

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