rib


rib
rib1
ribber, n.ribless, adj.riblike, adj.
/rib/, n., v., ribbed, ribbing.
n.
1. one of a series of curved bones that are articulated with the vertebrae and occur in pairs, 12 in humans, on each side of the vertebrate body, certain pairs being connected with the sternum and forming the thoracic wall. See diag. under skeleton.
2. a cut of meat, as beef, containing a rib. See diag. under beef.
3. ribs, spareribs (def. 2).
4. Archit.
a. any of several archlike members of a vault supporting it at the groins, defining its distinct surfaces, or dividing these surfaces into panels: including ogives and tiercerons.
b. any of several molded members or moldings, including ridge ribs and liernes, on the surface of a vault accenting the ridges or dividing the surface into panels.
5. something resembling a rib in form, position, or use, as a supporting or strengthening part.
6. a structural member that supports the shape of something: an umbrella rib.
7. Naut. any of the curved framing members in a ship's hull that rise upward and outward from the keel; frame.
8. a stiffening beam cast as part of a concrete slab.
9. a primary vein of a leaf.
10. a vertical ridge in cloth, esp. in knitted fabrics.
11. a ridge, as in poplin or rep, caused by heavy yarn.
12. a wife (in humorous allusion to the creation of Eve. Gen. 2:21-22).
13. Ceram. a scraper for smoothing clay being thrown on a potter's wheel.
14. a metal ridge running along the top of the barrel of a firearm to simplify aligning the sights.
15. a longitudinal strip of metal joining the barrels of a double-barreled gun.
v.t.
16. to furnish or strengthen with ribs.
17. to enclose as with ribs.
18. to mark with riblike ridges or markings.
[bef. 900; ME, OE rib(b); c. G Rippe]
rib2
/rib/, v.t., ribbed, ribbing.
to tease; make fun of.
[1925-30, Amer.; appar. short for rib-tickle (v.)]

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bone
      any of several pairs of narrow, curved strips of bone (sometimes cartilage) attached dorsally to the vertebrae and, in higher vertebrates, to the breastbone ventrally, to form the bony skeleton, or rib cage, of the chest. The ribs help to protect the internal organs that they enclose and lend support to the trunk musculature.

      Fish have two sets of ribs, which attach to the upper and lower parts of the vertebral arches and which do not join in front. The upper (dorsal) set of ribs is believed to have evolved into the ribs of land vertebrates. Attachment of ribs to a breastbone (sternum) to form a rib cage appeared first in reptiles. In the primitive condition, ribs were attached to all vertebrae; this is still true in some reptiles (e.g., snakes), but in mammals only thoracic vertebrae carry ribs. Remnants of cervical ribs secondarily fused to cervical vertebrae (the uppermost part of the vertebral column) are represented by part of the transverse process of the cervical vertebrae.

      The number of pairs of ribs in mammals varies from 9 (whale) to 24 (sloth); of true ribs, from 3 to 10 pairs. In humans there are normally 12 pairs of ribs. The first seven pairs are attached directly to the sternum by costal cartilages and are called true ribs. The 8th, 9th, and 10th pairs—false ribs—do not join the sternum directly but are connected to the 7th rib by cartilage. The 11th and 12th pairs—floating ribs—are half the size of the others and do not reach to the front of the body. Each true rib has a small head with two articular surfaces—one that articulates on the body of the vertebra and a more anterior tubercle that articulates with the tip of the transverse process of the vertebra. Behind the head of the rib is a narrow area known as the neck; the remainder is called the shaft.

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Universalium. 2010.

Look at other dictionaries:

  • rib — rib·ald·ly; rib·al·drous; rib·al·dry; rib·and; rib·bok; rib·bon·er; rib·bon·ism; rib·bon·man; rib·by; rib; rib·less; rib·let; rib·ald; rib·band; rib·ber; rib·bing; rib·bon; pe·rib·o·lus; …   English syllables

  • Rib — Rib, n. [AS. rib, ribb; akin to D. rib, G. rippe, OHG. rippa, rippi, Dan. ribbe, Icel. rif, Russ. rebro.] 1. (Anat.) One of the curved bones attached to the vertebral column and supporting the lateral walls of the thorax. [1913 Webster] Note: In… …   The Collaborative International Dictionary of English

  • rib — [rib] n. [ME ribbe < OE rib, akin to ON rif, Ger rippe < IE base * rebh , to arch over, roof over > Gr ereptein, to crown, OSlav rebro, rib] 1. any of the arched bones attached posteriorly to the vertebral column and enclosing the chest… …   English World dictionary

  • Rib — Rib, v. t. [imp. & p. p. {Ribbed}; p. pr. & vb. n. {Ribbing}.] 1. To furnish with ribs; to form with rising lines and channels; as, to rib cloth. [1913 Webster] 2. To inclose, as with ribs, and protect; to shut in. [1913 Webster] [1913 Webster]… …   The Collaborative International Dictionary of English

  • RIB — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. {{{image}}}   Sigles d une seule lettre   Sigles de deux lettres > Sigles de trois lettres …   Wikipédia en Français

  • rib... — rib..., Rib... vgl. ↑ribo..., Ribo …   Das große Fremdwörterbuch

  • Rib — Rib. См. Ребро жесткости. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • RIB ou R.I.B. — ● RIB ou R.I.B. nom masculin Relevé d identité bancaire …   Encyclopédie Universelle

  • Rib — Rib: Symbol für ↑ Ribose in Polysaccharidformeln …   Universal-Lexikon

  • rib — vb *banter, chaff, kid, rag, josh, jolly …   New Dictionary of Synonyms

  • rib- — *rib germ., Verb: nhd. wickeln; ne. wrap (Verb); Hinweis: s. *rība , *ribjōn; Etymologie: s. ing. *reip , Verb, Substantiv, reißen, Rand, Pokorny 858; …   Germanisches Wörterbuch


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