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articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually four in the latter. They are used as organs of touch, and in some species of Crustacea the cavity of the ear is situated near the basal joint. In insects, they are popularly called horns, and also fe…

The last syllable of a word except two, as -syl in monosyllable.

Of or pertaining to the last syllable but two. -- n.

The two projecting feathered angles of the forehead of some birds; the frontal points.

A foot of three syllables, the first two long, and the last short.

One of the two halves of bilaterally symmetrical animals; one of any opposite symmetrical or homotypic parts in animals and plants.

ne containing antimony. Antimonial powder, a consisting of one part oxide of antimony and two parts phosphate of calcium; -- also called James's powder.

An anthem or psalm sung alternately by a choir or congregation divided into two parts. Also figuratively. O! never more for me shall winds intone, With all your tops, a vast antiphony. R. Browning.

The second of two clauses forming an antithesis.

edged to be not a simple selforiginated error. J. H. Newman. Anyhow, the languages of the two nations were closely allied. E. A. Freeman.

use, or character, or as a matter of thought; separately; independently; as, consider the two propositions apart.

Having two or more parts of different curvatures, so combined as to remove spherical aberration; -- said of a lens. Aplanatic focus of a lens (Opt.), the point or focus from which rays diverging pass the lens without spherical aberration. In certain forms of lenses there are two such foci; and it is by taking advantage…

to the same focus, the degree of achromatism 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.

The difference between two quantities commensurable only in power, as between sq. root2 and 1, or between the diagonal and side of a square.

The state of two nouns or pronouns, put in the same case, without a connecting word between them; as, I admire Cicero, the orator. Here, the second noun explains or characterizes the first. Growth by apposition (Physiol.), a mode of growth characteristic of non vascular tissues, in which nutritive matter from the blood…

To take or seize; to take hold of. [Archaic] We have two hands to apprehended it. Jer. Taylor.

One of the two points of an orbit, as of a planet or satellite, which are at the greatest and least distance from the central body, corresponding to the aphelion and perihelion of a planet, or to the apogee and perigee of the moon. The more distant is called the higher apsis; the other, the lower apsis; and the line jo…

The wood cells differ from those of other in having the dots in their lateral surfaces in two or three rows, and the dots of contiguous rows alternating. The seeds are edible.

A person, or one of two or more persons, chosen by parties who have a controversy, to determine their differences. See Arbitration.

An acute and rugged crest of a mountain range or a subsidiary ridge between two mountain gorges.