Monera \Mo*ne"ra\, n. pl. [NL., fr. Gr. ? single.] (Zo["o]l.) The lowest division of rhizopods, including those which resemble the am[oe]bas, but are destitute of a nucleus.
Source: Webster's Revised Unabridged Dictionary (1913)
Moneron \Mo*ne"ron\, n.; pl. L. Monera; E. Monerons. [NL.] (Zo["o]l.) One of the Monera.