The Collaborative International Dictionary
Staminodium
Staminodium \Stam`i*no"di*um\ (-n[=o]"d[i^]*[u^]m), n.; pl. Staminodia (-[.a]). [NL. See Stamen, and -oid.] (Bot.) An abortive stamen, or any organ modified from an abortive stamen.
Wiktionary
staminodium
n. (context botany uncommon English) (alternative form of staminode English)