Het`er·o·ceph'a·lous adjective [ Hetero- + Greek ... head.] (Botany) Bearing two kinds of heads or capitula; -- said of certain composite plants.
Found on http://www.encyclo.co.uk/webster/H/39


heterocephalous 1. Applied to a composite plant bearing flower-heads of different kinds, male and female. 2. A fetus with two unequal heads.
Found on http://www.wordinfo.info/words/index/info/view_unit/2790/2
No exact match found