EndorhizaEn`do*rhi"za\, n.; pl. Endorhiz[ae]. [NL., fr. Gr. ? within + ? root.] (Bot.) Any monocotyledonous plant; -- so named because many monocotyledons have an endorhizal embryo. Note: Endorhiza was proposed by Richard as a substitute for the term endogen, and exorhiza as a substitute for the term exogen; but they have not been generally adopted.