Definition of clot in English:

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Pronunciation: /klät/


1A thick mass of coagulated liquid, especially blood, or of material stuck together: a flat, wet clot of dead leaves figurative a clot of people arguing in the doorway
More example sentences
  • The infected cells stick together, forming clots in the fine blood vessels of the brain.
  • The most common type of embolus is a clot of blood, but other things can cause an embolism too.
  • She wiped away the little clot of blood on his right ear and kissed it.
2British informal A foolish or clumsy person: “Watch where you’re going, you clot!”
More example sentences
  • Meanwhile some clumsy clot seems to have copied and pasted from last year's invitations.
  • Maybe somewhere my friend was being similarly greeted and on the cusp of turning from a loveable clot into a threatening idiot.

verb (clots, clotting, clotted)

1Form or cause to form into clots: [no object]: drugs that help blood to clot [with object]: a blood protein known as factor VIII clots blood
More example sentences
  • The thickened blood may clot in the fingers and toes, causing numbness, or in the brain, causing dizziness and confusion.
  • Platelets are blood components that aid clotting.
  • Fluid from the ovaries prevents blood from clotting.
1.1 [with object] Cover (something) with sticky matter: its nostrils were clotted with blood
More example sentences
  • On Saturday the sky was clotted with unseasonable gray clouds that hung over the San Gabriel Mountains, which rose sharply about a mile in the distance.
  • Veiled by rain and ringed with cloud which clotted every crevice and clogged up the view, it felt like the only place left on earth.
  • Your faces are clotted with pimples, and your hair is oily.


Old English clott, clot, of Germanic origin; related to German Klotz.

  • cloud from Old English:

    The Old English word cloud was first used to refer to a mass of rock or earth, and is probably related to clot (Old English). Only around the end of the 13th century did the meaning ‘visible mass of condensed watery vapour’ develop, presumably because people could see a resemblance in shape between a cloud and rocks.

    On cloud nine you are extremely happy. A possible source of the expression is the classification of clouds given in a meteorological guide published in 1896 called the International Cloud Atlas. According to this guide there are ten basic types of cloud, cumulonimbus being the one numbered nine. Cumulonimbus clouds are the ones that form a towering fluffy mass. They get their name from Latin cumulus ‘a heap’ found also in accumulate (Late Middle English). ‘Cloud nine’ is said to have been popularized by the Johnny Dollar radio show in the USA during the 1950s. Johnny Dollar was a fictional insurance investigator who got into a lot of scrapes. Every time he was knocked unconscious he was taken to ‘cloud nine’, where he recovered. Cloud cuckoo land is a translation of Greek Nephelokokkugia (from nephelē ‘cloud’ and kokkux ‘cuckoo’). This was the name the ancient Greek dramatist Aristophanes gave to the city built by the birds in his comedy The Birds. According to the proverb every cloud has a silver lining, even the gloomiest outlook contains some hopeful or consoling aspect. The saying is recorded from the 19th century, though John Milton expresses a similar sentiment in Comus in 1643: ‘Was I deceiv'd or did a sable cloud / Turn forth her silver lining on the night?’

Words that rhyme with clot

allot, begot, Bernadotte, blot, bot, capot, cocotte, cot, culotte, dot, forgot, garrotte (US garrote), gavotte, got, grot, hot, jot, knot, lot, Mayotte, motte, not, Ott, outshot, plot, pot, rot, sans-culotte, Scot, Scott, shallot, shot, slot, snot, sot, spot, squat, stot, swat, swot, tot, trot, undershot, Wat, Watt, what, wot, yacht

For editors and proofreaders

Syllabification: clot

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