diatom ace an

[Lat. diatom ace (a) (q.v.). and Eng. suff. -an.] Bot.: A member of the order Diatomacese. di-a-tom-ic, a. [Pref. di = twice, twofold, and Eng. atomic ( Chem.) (q. v.).] Chem.: Dyad. A term given to an element which is incapable of directly combining with only two atoms of monatomic (monad) element; as with two atoms of hydrogen, chlorine, . [ATOMICITY.] Oxygen is a diatomic (dyad) element; it has its atomicity represented by two bonds, thus -0-; or by two dashes, as O". diatomic acid, s . Chem.: An organic acid derived from a diatomic "A rough surface is more likely to cause increased emi ion of heat that very slightly alcohol. (Only alcohols can yield acids.) diathermanous, in which therefore the total radiations The acid is old primamo of the pri confined to a very small depth below the surface."- Lon don Academy. di-a-ther-mic, a. [Greek dia = through, and thermos =heat.] Transmitting heat; allowing heat to pa through. [Gr. dia = through,