Para nucleus

Chamber's Twientieth Century Dictionary · 1908 · p. 74

par-a-nū′klē-us, n. ( biol. ) an acce ory nucleus in some protozoans.— adjs. Paranū′clear , Paranū′cleate .— n. Paranūclē′olus , a ma of substance extruded from the nucleus, in pollen and spore mother-cells before division.