There are 2 definitions of keel in English:

keel1

Line breaks: keel
Pronunciation: /kiːl
 
/

noun

  • 1The lengthwise timber or steel structure along the base of a ship, supporting the framework of the whole, in some vessels extended downwards as a ridge to increase stability.
    More example sentences
    • Support the keel with timber blocking to take most of the weight of the hull.
    • Even nautical archaeology has made great gains, for many of the waterfront structures incorporated broken-up vessel fragments, hull planking, keels, a prow, a side rudder, ribs, a mast partner.
    • Again the men were coerced under once more, and made to endure yet another rake along the keel of the ship, where lurked the treacherous gatherings of barnacles.
    Synonyms
    base, bottom, bottom side, underside
  • 1.1 literary A ship: to buy a new keel with my gold, And fill her with such things as she may hold
  • 2 Zoology A ridge along the breastbone of many birds to which the flight muscles are attached; the carina.
    More example sentences
    • The sternum, or breastbone, bears a prominent keel where the flight muscles attach.
    • M. gui's sternum didn't have a keel upon which large flight muscles could be attached.
    • It has a distinct fold of flesh, marked by a line of hair that runs like a keel along its belly.
  • 3 Botany A prow-shaped pair of petals present in flowers of the pea family.
    More example sentences
    • Within-flower transfer of pollen from anthers to stigma was achieved by depressing the keel petal of newly opened flowers using fine forceps.
    • The reproductive organs are enclosed within the keel petals.
    • As in other specimens of D. zenos, a ventral keel is not present.

verb

[no object] (keel over) Back to top  

Derivatives

keeled

adjective
[in combination]: a deep-keeled yacht

keelless

adjective
More example sentences
  • Physically, breeding stock should have keelless breasts and broad backs.
  • This is something you simply cannot do in a keelless flat bottom boat.
  • The carapace (upper shell) is olive to dark brown to almost black, patternless, smooth and keelless.

Origin

Middle English: from Old Norse kjǫlr, of Germanic origin.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody

There are 2 definitions of keel in English:

keel2

Line breaks: keel
Pronunciation: /kiːl
 
/

noun

British
  • A flat-bottomed boat of a kind formerly used on the Rivers Tyne and Wear for loading ships carrying coal.
    More example sentences
    • The original Tyne keel was clinker-built but later types were of carvel build.
    • The earliest recorded use of Keels for transporting coal on the Tyne is in the early 1300's.

Origin

Middle English: from Middle Low German kēl, Middle Dutch kiel 'ship, boat'.

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