ocellé, -e, adj., ocellated.
ochlocratie (o-klo-cra-ci), n.f., ochlocracy.
☉ochre, n.f. V. ocre.
ocre, n.f., ochre.
ocreu-x, -se, adj., ochry, ochreous.
octaèdre, n.m., (geom.) octahedron.
octaédrique, adj., (geom.) octahedral.
octandre, adj., (bot.) octandrian, octandrous.
octandrie, n.f., (bot.) octandria.
octant, n.m., octant; quadrant.