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which the loop or visceral nerves is twisted, and the sexes separate. It is nearly to equivalent to Prosobranchiata.

s, cassowaries, emus, moas, and allied birds incapable of flight. In this sense it is equivalent to Ratitæ, or Dromæognathæ.

e normal amount; as, subsulphide, suboxide, etc. Prefixed to the name of a salt it is equivalent to basic; as, subacetate or basic acetate. [Obsoles.]

in the proportion of two to three; as, a subsesqui acetate, i. e., a salt having two equivalents of acetic acid to three of the base.

A nonacid compound consisting of one equivalent of sulphur and more than one equivalent of some other body, as a metal.

ing, sulphur; specifically, designating those compounds in which the element has a higher valence as contrasted with the sulphurous compounds; as, sulphuric acid. Sulphuric acid. (a) Sulphur trioxide (see under Sulphur); -- formerly so called on the dualistic theory of salts. [Obs.] (b) A heavy, corrosive, oily liquid,…

ning, sulphur; specifically, designating those compounds in which the element has a lower valence as contrasted with the sulphuric compounds.

One of two or more words (commonly words of the same language) which are equivalents of each other; one of two or more words which have very nearly the same signification, and therefore may often be used interchangeably. See under Synonymous. [Written also synonyme.] All languages tend to clear themselves of synonyms a…

Among the Hebrews, a weight and denomination of money. For silver it was equivalent to 3,000 shekels, and in weight was equal to about 93

Equivalent in value, signification, or effect. A usage nearly tantamount to constitutional right. Hallam. The certainty that delay, under these circumstances, was tantamount to ruin. De Quincey.

g, tellurium; specifically, designating those compounds in which the element has a higher valence as contrasted with tellurous compounds; as, telluric acid, which is analogous to sulphuric acid. Telluric bismuth (Min.), tetradymite. -- Telluric silver (Min.), hessite.

ng, tellurium; specifically, designating those compounds in which the element has a lower valence as contrasted with telluric compounds; as, tellurous acid, which is analogous to sulphurous acid.

Exciting kind concern; dear; precious. I love Valentine, Whose life's as tender to me as my soul! Shak.

f continuity; constant mode; general tendency; course; career. Along the cool sequestered vale of life They kept the noiseless tenor of their away. Gray.

A group of rocks having a common age or origin; -- nearly equivalent to formation, but used somewhat less comprehensively.

A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad.

Having a valence of four; quadrivalent; tetravalent; sometimes, in a specific sense, having four hydroxyl groups, whether acid or basic.

ng, thallium; specifically, designating those compounds in which the element has a higher valence as contrasted with the thallous compounds; as, thallic oxide.

ing, thallium; specifically, designating those compounds in which the element has a lower valence as contrasted with the thallic compounds. [Written also thallious.]

As a relative pronoun, that is equivalent to who or which, serving to point out, and make definite, a person or thing spoken of, or alluded to, before, and may be either singular or plural. He that reproveth a scorner getteth to himself shame. Prov. ix. 7. A judgment that is equal and impartial must incline to the grea…