1. An intertwining of the ends of two cords, tapes, or sutures, in such a way that they cannot easily become separated; or a similar twining or infolding of a cord in its continuity. 2. In anatomy or pathology, a node, ganglion, or circumscribed swelling suggestive of a k.. [A.S. cnotta]
- false knots, false knots of umbilical cord local increases in length or varicosity of the umbilical vein, causing markedly apparent twisting of the cord.
- granny k. a double k. in which the free ends of the second loop are asymmetric and not in the same plane as the free ends of the first loop.
- Hensen k. SYN: primitive node.
- Hubrecht protochordal k. SYN: primitive node.
- laparoscopic k. a k. placed intracorporally through a laparoscopic instrument. The k. itself may be tied extracorporally and passed into the body through a cannula or the k. may be both placed and tied intracorporally.
- net k. SYN: karyosome.
- primitive k. SYN: primitive node.
- protochordal k. SYN: primitive node.
- square k. a double k. in which the free ends of the second loop are symmetric and in the same plane as the free ends of the first loop.
- surgeon's k. the first loop of the k. has two throws rather than a single throw. The second loop has only one throw and that is placed in a square k. fashion leaving the free ends in the same plane as the first loop.
- syncytial k. a localized aggregation of syncytiotrophoblastic nuclei in the villi of the placenta during early pregnancy. SYN: syncytial bud, syncytial sprout.
- true k., true k. of umbilical cord actual intertwining of a segment of umbilical cord; circulation is usually not obstructed.
- vital k. SYN: noeud vital.

* * *

knot 'nät n
1) an interlacing of the parts of one or more flexible bodies (as threads or sutures) in a lump to prevent their spontaneous separation see SURGEON'S KNOT
2) a usu. firm or hard lump, swelling, or protuberance in or on a part of the body or a bone or process <a \knot in a gland> <a bone with two or three \knots> compare SURFER'S KNOT
knot vb, knot·ted; knot·ting

* * *

(not) 1. an intertwining of the ends or parts of one or more threads, sutures, or strips of cloth so they cannot easily be separated. 2. in anatomy, a knoblike swelling or protuberance, as a node.

Medical dictionary. 2011.

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  • Knot — (n[o^]t), n. [OE. knot, knotte, AS. cnotta; akin to D. knot, OHG. chnodo, chnoto, G. knoten, Icel. kn[=u]tr, Sw. knut, Dan. knude, and perh. to L. nodus. Cf. {Knout}, {Knit}.] 1. (a) A fastening together of the parts or ends of one or more… …   The Collaborative International Dictionary of English

  • knot — [nɒt ǁ nɑːt] noun 1. tie the knot JOURNALISM if two companies tie the knot, they join and become one company; = MERGE: • Banks across the country tied the knot as a way to cut costs and boost earnings. 2. [countable] a measurement of the speed at …   Financial and business terms

  • knot — I {{/stl 13}}{{stl 8}}rz. mos IIIb, Mc. knocie {{/stl 8}}{{stl 7}} mały chłopiec, szkrab, malec : {{/stl 7}}{{stl 10}}Był tam taki mały knot. {{/stl 10}}{{stl 20}} {{/stl 20}} {{stl 20}} {{/stl 20}}knot II {{/stl 13}}{{stl 8}}rz. mnż I, D. a, Mc …   Langenscheidt Polski wyjaśnień

  • knot — knot1 [nät] n. [ME knotte < OE cnotta, akin to Du knot, Swed knut, Ger knoten < IE * gn eu t < base * gen , to press together > KNOB, KNEAD] 1. a lump or knob in a thread, cord, etc., formed by passing one free end through a loop and… …   English World dictionary

  • Knot — Knot, v. t. [imp. & p. p. {Knotted}; p. pr. & vb. n. {Knotting}.] 1. To tie in or with, or form into, a knot or knots; to form a knot on, as a rope; to entangle. Knotted curls. Drayton. [1913 Webster] As tight as I could knot the noose. Tennyson …   The Collaborative International Dictionary of English

  • knot — ► NOUN 1) a fastening made by looping a piece of string, rope, etc. on itself and tightening it. 2) a tangled mass in hair, wool, etc. 3) a protuberance in a stem, branch, or root. 4) a hard mass in wood at the intersection of a trunk with a… …   English terms dictionary

  • Knot — Knot, v. i. 1. To form knots or joints, as in a cord, a plant, etc.; to become entangled. [1913 Webster] Cut hay when it begins to knot. Mortimer. [1913 Webster] 2. To knit knots for fringe or trimming. [1913 Webster] 3. To copulate; said of… …   The Collaborative International Dictionary of English

  • knot — [n1] bow, loop bond, braid, bunch, coil, connection, contortion, entanglement, gnarl, helix, hitch, joint, kink, ligament, ligature, link, mat, nexus, perplexity, rosette, screw, snag, snarl, spiral, splice, tangle, tie, twirl, twist, vinculum,… …   New thesaurus

  • knot|ty — «NOT ee», adjective, ti|er, ti|est. 1. full of knots: »knotty wood. ... the knotty side of an old Pollarel tree (Keats). A modern kitchen with knotty pine cabinets and exhaust fans (New York Times). SYNONYM(S): gnarled …   Useful english dictionary

  • knot — knot. См. узел. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Knot — (Kanutsvogel), so v.w. Strandläufer …   Pierer's Universal-Lexikon

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