(prosody) Consisting of three semeia; trisemic.

(organic chemistry) the addition of a trifluoromethyl group to a molecule

Third-person singular simple present indicative form of lip-lock

(mathematics) A hypercomplex number of the form t=w+xi+yj+zk, quad w,x,y,z∈ℝ where ij=ji=k, quad i²=-1, quad j²=+1.