Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Swelling outward; bulging.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Swelling or bulging outward.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Prominent, or excessively prominent; bulging beyond the surrounding or adjacent surface; swelling

from The Century Dictionary and Cyclopedia

  • Swelling; prominent beyond the surrounding surface.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. curving outward

Etymologies

Late Latin prōtūberāns, prōtūberant-, present participle of prōtūberāre, to bulge out; see protuberate.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin protuberans, protuberantis, present participle of protuberare. See protuberate. (Wiktionary)

Examples

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  • Kellerman-Flesh and Blood : "I caught a nose-full of rotten meat stench and a glimpse of misshapen green-gray face, purplish, swollen eyes, protuberant tongue, long blonde strands, before he resealed the bag and led me away"

    November 12, 2010

  • Bouncer. Good morning, Colonel Cox. I hope you slept comfortably, Colonel.

    Cox. I can't say I did, B. I should feel obliged to you, if you could accommodate me
    with a more protuberant bolster, B. The one I’ve got now seems to me to have
    about a handful and a half of feathers at each end, and nothing whatever in the
    middle.

    -- Cox and Box

    August 20, 2008