Simple Definition of protuberant
: sticking out from a surface usually with a curved or rounded shape
Full Definition of protuberant
: thrusting out from a surrounding or adjacent surface often as a rounded mass : prominent <protuberant eyes>
Origin of protuberant
Late Latin protuberant-, protuberans, present participle of protuberare to bulge out, from Latin pro- forward + tuber excrescence, swelling; perhaps akin to Latin tumēre to swell — more at thumb
First Known Use: 1646
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Medical Dictionary: Definition of "protuberant"
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