SEMELPAROUS

PRONUNCIATION: (se-MEL-puh-ruhs)

MEANING: adjective: Reproducing only once in a lifetime.

ETYMOLOGY: Coined by the biologist LaMont C. Cole (1916-1978). From Latin semel (once) + -parous (producing). Earliest documented use: 1954. The opposite is iteroparous, reproducing multiple times in one’s lifetime.
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USE ME, L. PAROUS - Louis Parous, the casting director, gets a lot of requests like this

SEMEL: PAR OUT - Psychiatry Grand Rounds topic for the week: When Consistenly Excellent Isn't Good Enough

SEMI-ELGAROUS - how to describe the Enigma Variations when re-written eliminating every second note