tylosis

tylosis
Formation of a callus (tyloma). [G. a becoming callous]
- t. ciliaris SYN: pachyblepharon.
- t. linguae leukoplakia of the tongue.
- t. palmaris et plantaris SYN: palmoplantar keratoderma.

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ty·lo·sis tī-'lō-səs n, pl ty·lo·ses -'lō-sēz a thickening and hardening of the skin: CALLOSITY

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n.
focal keratosis occurring especially on the palms and soles. It occurs early in life and is inherited as an autosomal dominant. It is associated with oral leukokeratosis and with oesophageal cancer.

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ty·lo·sis (ti-loґsis) [Gr. tylōs a knob or callus] formation of a callus. tylotic adj

Medical dictionary. 2011.

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Look at other dictionaries:

  • Tylosis — Tylosis …   Wikipédia en Français

  • tylosis — ⇒TYLOSIS, subst. masc. PATHOL. Cor au pied ou œil de perdrix. Le Dr Bazin (...) aurait rougi de ne pas appeler un cor, tylosis (GOURMONT, Esthét. lang. fr., 1899, p. 38). Prononc. et Orth.:[ ]. Lar. Lang. fr.: tylose, tylosis. Étymol. et Hist. 1 …   Encyclopédie Universelle

  • Tylosis — Ty*lo sis, n.; pl. {Tyloses}. [NL., fr. Gr. ty los a lump, knot.] (Bot.) An intrusion of one vegetable cell into the cavity of another, sometimes forming there an irregular mass of cells. Goodale. [1913 Webster] …   The Collaborative International Dictionary of English

  • Tylōsis — (gr.), 1) so v.w. Tyloma; 2) schwielige Verhärtung auch in andern Theilen, Geschwüre etc.; 3) Augenliderschwiele, s.d …   Pierer's Universal-Lexikon

  • Tylosis — Tylosis …   Wikipédia en Français

  • tylosis — /tuy loh sis/, n., pl. tyloses / seez/. Bot. a bubblelike formation in the cavity of tracheids or vessels in the wood of trees, consisting of protoplasm intruded from adjacent parenchyma cells. [1875 80; < Gk týlosis act of making callous, equiv …   Universalium

  • tylosis — /taɪˈloʊsəs/ (say tuy lohsuhs) noun balloon like extensions of the walls of xylem vessels, found especially in heartwood. {Greek tylōsis act of making hard} …  

  • tylosis — n.; pl. es [Gr. tylos, knob] A hardening or thickening; a callous …   Dictionary of invertebrate zoology

  • tylosis — noun a) a thickening of the skin, especially of the eyelids b) a balloonlike growth in a plant cavity; a tylose …   Wiktionary

  • Tylosis — Ty|lo|se, Ty|lo|sis, die; , ...osen (Med.): das Auftreten von Tylomen …   Universal-Lexikon

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