cassette

cassette
1. A plate, film, or tape holder for use in photography or radiography. A radiographic c. contains two intensifying screens and a sheet of x-ray film. 2. A perforated holder in which tissue blocks are placed for paraffin embedding. [Fr., dim. of casse, box]
- susceptibility c. a common sequence of amino acid s in residues 70–74 in the HLA-DRB1 chains, found in alleles associated with rheumatoid arthritis. It is one of two variations: glutamine[Q]-lysine[K]-arginine[R]-alanine[A]-alanine[A] or QRRAA. These susceptibility cassettes are found in many different DRB1 alleles. The alpha and beta chains that form these antigen-presenting molecules have a configuration not unlike a trough or rain gutter; antigens are bound by sequences of amino acid s in a pocket along the bottom and sides of the trough or cavity, and this complex forms a heterotrimer with the T-cell receptor on CD4+ cells. SYN: rheumatoid pocket, shared epitope.

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cas·sette also ca·sette kə-'set, ka- n
1) a lightproof magazine for holding film or plates for use in a camera specif one for holding the intensifying screens and film in X-ray photography
2) a small plastic cartridge containing magnetic tape with the tape on one reel passing to the other

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n.
(in radiography) a thin light-proof box in which a piece of photographic film is placed. It usually contains special screens, which fluoresce on exposure to X-rays, intensifying the image formed on photographic film when a radiographic exposure is taken. In computerized radiography the cassette may contain an electrically charged plate.

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cas·sette (kə-setґ) [Fr. “a little box”] 1. a flat case for film or magnetic tape. 2. x-ray c.

Medical dictionary. 2011.

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  • cassette — [ kasɛt ] n. f. • 1348; de l a. fr. casse « caisse, coffre » 1 ♦ Vx Petit coffre destiné à ranger de l argent, des bijoux. ⇒ boîte, coffret. La cassette d Harpagon. 2 ♦ Trésor particulier (d un prince). Je prendrai cette somme sur ma cassette… …   Encyclopédie Universelle

  • Cassette — may refer to:*In general, a small cartridge. In practice, there is a large amount of overlap between the two terms, and the term chosen may be somewhat arbitrary.] It may refer specifically to: ** Compact Cassette, a worldwide standard for analog …   Wikipedia

  • cassette — CASSETTE. sub. f. Petit coffre où l on serre ordinairement des choses de conséquence. On lui a pris ses pierreries dans sa cassette. Saisir, ouvrir une cassette. [b]f♛/b] On appelle La cassette du Roi, La somme que le Garde du Trésor Royal porte… …   Dictionnaire de l'Académie Française 1798

  • Cassette — Cas sette Cassette Cas sette , n. [F., prop., a casket, dim. of casse a case. See 1st {Case}.] 1. Same as {Seggar}. [Webster 1913 Suppl.] 2. a small case to hold a removable part of some mechanism, designed for convenience in inserting and… …   The Collaborative International Dictionary of English

  • Cassette — Cas sette Cassette Cas sette , n. [F., prop., a casket, dim. of casse a case. See 1st {Case}.] 1. Same as {Seggar}. [Webster 1913 Suppl.] 2. a small case to hold a removable part of some mechanism, designed for convenience in inserting and… …   The Collaborative International Dictionary of English

  • cassette — Cassette. sub. fem. Petit coffre où l on serre ordinairement des choses de consequence. On luy a pris ses pierreries dans sa cassette. saisir, ouvrir une cassette …   Dictionnaire de l'Académie française

  • cassette — (n.) 1793, little box, from Fr. cassette, from M.Fr. casset, dim. of O.N.Fr. casse box (see CASE (Cf. case) (n.2)). Meaning magnetic tape recorder cartridge is from 1960 …   Etymology dictionary

  • cassette — cassette. См. кассета. (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.

  • Cassette — (fr.), 1) Kästchen, bes. Geldkästchen; 2) (lat. Lacunaria), vertiefte, runde, rautenförmige, viereckige Felder, welche in gewölbten Decken bei Bogen, bes. in Kuppeln zur Erleichterung u. zum Schmuck derselben angewendet werden. Sie sind mit… …   Pierer's Universal-Lexikon

  • Cassette — (frz. Cassät), Kästchen, Schatulle. – In der Baukunst vertiefte Felder zur Verzierung von Decken, rund oder eckig, auf dem Grunde gewöhnlich mit Malereien …   Herders Conversations-Lexikon

  • cassette — ► NOUN ▪ a sealed plastic case containing audio tape, videotape, film, etc., for insertion into a recorder, camera, etc. ORIGIN French, little box …   English terms dictionary

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