Defn: A salt of tetrathionic acid.
TETRATHIONIC
Tet`ra*thi*on"ic, a. Etym: [Tetra- + thionic.] (Chem.)
Defn: Of, pertaining to, or designating, a thionic derivative, H
TETRATOMIC Tet`ra*tom"ic, a. Etym: [Tetra- + atomic.] (Chem.) (a) Consisting of four atoms; having four atoms in the molecule, as phosphorus and arsenic. (b) Having a valence of four; quadrivalent; tetravalent; sometimes, in a specific sense, having four hydroxyl groups, whether acid or basic.
TETRAVALENCE
Te*trav"a*lence, n. (Chem.)
Defn: The quality or state of being tetravalent; quadrivalence.
TETRAVALENT
Te*trav"a*lent, a. Etym: [Tetra- + L. valens, -entis, p.pr.] (Chem.)
Defn: Having a valence of four; tetratomic; quadrivalent.
TETRAXILE
Te*trax"ile, a. Etym: [Tetra- + axile.] (Zoöl.)
Defn: Having four branches diverging at right angles; — said of certain spicules of sponges.