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protrusion

UK/pɹəˈtɹuːʒən/US/pɹəˈtɹuːʒən/
nounC2Rare in speech; mostly a word you read · #14,537 of 15,258leans written

Other forms: protrusions

A protrusion is a part that sticks out. A small protrusion, remove the protrusion, a protrusion on the surface.

It is the neutral word in medical and engineering writing, where naming a thing a protrusion says where it is without saying what it is. A disc protrusion is the milder stage of what everybody calls a slipped disc.

Definitions of protrusion

  1. 1nounprotrusionA part that sticks out.C2

    “The climber grabbed a small rocky protrusion and pulled himself up.”

protrusion is a part.

Where it comes from

French protrusion comes from Latin protrudere, to thrust forward.

  1. Proto-Indo-European

    *trewd-

  2. French

    protrusion

  3. English, today

    protrusion

From French protrusion.

Etymology from Wiktionary, CC BY-SA

Practise this word

protrusion in the wild

  • Bombelli is a roughly circular crater with a slight outward protrusion to the south-southwest.

    Bombelli (crater)

  • The outer rim of Ellison is roughly circular, with an inward protrusion along the southern rim and a slight outward bulge to the wet-northwest.

    Ellison (crater)

  • There is an outward protrusion of the crater wall to the northeast.

    Chalonge (crater)

  • A torus palatinus (pl.: tori palatini), or palatal torus (pl.: palatal tori), is a bony protrusion on the palate.

    Torus palatinus

  • Raven Rock is a sandstone protrusion in the Daniel Boone National Forest, overlooking Kentucky's Red River within the Red River Gorge.

    Raven Rock (Kentucky)

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From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.