| 单词 | nævus |
| 释义 | ‖ nævus Path.|ˈniːvəs|
Also (chiefly U.S.) nevus. Pl. nævi |ˈniːvaɪ|.
[L.]
A hypertrophied state of the blood-vessels of the skin, forming spots or elevations of a red or purplish colour, usually congenital; a mother's mark, a mole. nævus needle, a surgical needle for removing a nævus (Knight 1884).
[1693tr. Blancard's Phys. Dict. (ed. 2), Nævi, Moles, certain native Spots, and are Two-fold, either plain, or protuberant. 1706Phillips (ed. Kersey), Nævus, a Mole, a natural Mark or Spot in the Body.] 1835–6Todd's Cycl. Anat. I. 242/2 If the common mole be admitted under this class of nævi. Ibid. 243/1 The..characteristic of the third form of nævus. 1876Duhring Dis. Skin 41 Permanent vascular growths in the skin, as nævi. 1899Allbutt's Syst. Med. VIII. 826 A nævus is a new growth consisting of a congeries of dilated freely communicating vessels, held together by connective tissue. 1913Jrnl. Amer. Med. Assoc. 1 Feb. 341/1 (heading) Melanotic sarcomas resulting from irritation of pigmented nevi. 1961R. D. Baker Essent. Path. xx. 545 The word nevus has been used to designate skin blemishes of various sorts including ‘birthmarks’, but in current usage nevus means the ordinary mole of the skin. 1971Brit. Med. Bull. XXVII. 69/1 Trivial congenital defects such as..pigmented or vascular naevi. |
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