dichotriæne Zool.
(ˌdɪkəʊtraɪˈiːn)
[f. dicho- + Gr. τρίαινα trident: see triæne.]
A dichotomous triæne; a three-forked sponge spicule, having each fork dividing into two.
| 1887 Sollas in Encycl. Brit. XXII. 417/1 The arms of a triæne may bifurcate (dichotriæne) once, twice, or oftener, or they may trifurcate. |