(cellular automata) A one-dimensional binary cellular automaton rule displaying aperiodic, chaotic behaviour.

Any abnormality of the spermatozoa or the semen

(organic chemistry) The ketone of stearic acid, obtained as a white crystalline substance, (C₁₇H₃₅)₂.CO, by the distillation of calcium stearate.

(archaic) third-person singular simple present indicative form of retrieve