the first letter in our alphabet, its corresponding symbol standing first also in many other alphabets derived from the Phœnician. It originated in the hieroglyphic picture of an eagle (Old Egyptian ahom), the cursive hieratic form of which was the original of the Phœnician aleph, an ox, from a fancied resemblance to its head and horns.—A, as a note in music, is the major sixth of the scale of C; A1, the symbol by which first-class vessels are classed in Lloyd's Register of British and Foreign Shipping, hence first-rate.

A, the indefinite article, a broken-down form of An, and used before words beginning with the sound of a consonant. [An was a new development, after the Conquest, of the A.S. numeral án, one.]

A, ä or ā, a prep., derived from the old prep. on, and still used, as a prefix, in afoot, afield, apart, asleep, nowadays, twice-a-day; also with verbal nouns, as a-building, to be a-doing, to set a-going. It is now admitted only colloquially. [Short for A.S. an, a dialectic form of on, on, in, at. See Prefixes.]

A, ä, a dialectic corruption of he or she, as in quotha, (Shak.) 'A babbled of green fields.'—A, usually written a', Scotch for all; A, a form of the L. prep. ab, from, of, used before consonants, as in Thomas à Kempis, Thomas à Becket, &c.

Aardvark, ard′vark, n. the ground-hog of South Africa. [Dut. aarde, earth; vark, found only in dim. varken, a pig.]

Aardwolf, ard′wōōlf, n. the earth-wolf of South Africa, a carnivore belonging to a sub-family of the Hyænidæ. [Dut. aarde, earth, wolf, wolf.]

Aaronic, -al, ā-ron′ik, -al, adj. pertaining to Aaron, the Jewish high-priest, or to his priesthood.—n. Aa′ron's-rod (archit.), a rod having one serpent twined round it.—Aaron's beard, a popular name for a number of cultivated plants—among the best known, a species of Saxifrage (S. sarmentosa), usually grown in hanging pots, from which hang long stems, bearing clumps of roundish, hairy leaves.

Ab, ab, n. the eleventh month of the Jewish civil year, and the fifth of the ecclesiastical year, answering to parts of July and August. [Syriac.]

Aba, ab′a, n. a Syrian woollen stuff, of goat's or camel's hair, usually striped; an outer garment made of this. [Ar.]

Abaca, ab′a-ka, n. the native name of the so-called Manilla hemp of commerce—really a plantain, much grown in the Philippine Islands.