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drogen dioxide; -- so called because apparently antagonistic to ozone, converting it into ordinary oxygen.

One of the orders of amphibians characterized by the absence of a tail, as the frogs and toads. [Written also anoura.]

state of separation as to place; aside. Others apart sat on a hill retired. Milton. The Lord hath set apart him that is godly for himself. Ps. iv. 3.

in his nature which led him . . . to leave events to take their own course. Prescott. According to the Stoics, apathy meant the extinction of the passions by the ascendency of reason. Fleming.

Loss of the power of speech, or of the appropriate use of words, the vocal organs remaining intact, and the intelligence being preserved. It is dependent on injury or disease of the brain.

Loss of the power of speaking, while retaining the power of writing; -- a disorder of cerebral origin.

The dropping of a letter or syllable from the beginning of a word; e. g., cute for acute.

The loss of a short unaccented vowel at the beginning of a word; -- the result of a phonetic process; as, squire for esquire. New Eng. Dict.

Shortened by dropping a letter or a syllable from the beginning of a word; as, an aphetic word or form. -- A*phet"ic*al*ly, adv. New Eng. Dict.

An aphetized form of a word. New Eng. Dict.

To shorten by aphesis. These words . . . have been aphetized. New Eng. Dict.

A genus of insects belonging to the order Hemiptera and family Aphidæ, including numerous species known as plant lice and green flies.

A comprehensive maxim or principle expressed in a few words; a sharply defined sentence relating to abstract truth rather than to practical matters. The first aphorism of Hippocrates is, "Life is short, and the art is long." Fleming.

A disorder of speech in which words can be uttered but not intelligibly joined together.

A letter, or a combination of letters, employed in spelling a word, but in the pronunciation having no sound. -- Aph*thon"gal, a.

A genus of insects of the order Hymenoptera, including the common honeybee (Apis mellifica) and other related species. See Honeybee.

A genus of marine mollusks of the order Tectibranchiata; the sea hare. Some of the species when disturbed throw out a deep purple liquor, which colors the water to some distance. See Illust. in Appendix.

An order of holothurians in which the internal respiratory organs are wanting; -- called also Apoda or Apodes.

sm thus obtained being more complete than where two rays only are thus focused, as in the ordinary achromatic objective. --Ap`o*chro"ma*tism (#), n.

To cut off or drop; as, to apocopate a word, or the last letter, syllable, or part of a word.