Etymology
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ejaculate (v.)

1570s, "emit semen," from Latin eiaculatus, past participle of eiaculari "to throw out, shoot out," from ex "out" (see ex-) + iaculari "to throw, hurl, cast, dart," from iaculum "javelin, dart," from iacere "to throw" (from PIE root *ye- "to throw, impel"). Sense of "exclaim suddenly" is from 1660s. Related: Ejaculated; ejaculating; ejaculatory.

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Definitions of ejaculate
1
ejaculate (v.)
utter impulsively;
Synonyms: blurt out / blurt / blunder out / blunder
ejaculate (v.)
eject semen;
2
ejaculate (n.)
the thick white fluid containing spermatozoa that is ejaculated by the male genital tract;
Synonyms: semen / seed / seminal fluid / cum / come
From wordnet.princeton.edu