Etymology: From (term, parasitus, lang=la) < (term, , tr=parasitos, , person who eats at the table of another, lang=el) < noun use of adjective meaning "feeding beside," < (term, -, tr=para-, , beside) + (term, , tr=sitos, , food).
- (biology) A (generally undesirable) living organism that exists by stealing the resources needed by another (generally desirable) living organism. See flea, tick, mite.
- (pejorative) A useless person who always relies on other people's work and gives nothing back.
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Full Definition of parasite