单词 | amelanotic |
释义 | amelanoticadj. That does not contain or produce the dark pigment melanin; lacking pigmentation by melanin.Often used with reference to melanomas. ΚΠ 1914 Ann. Surg. 60 95 It would seem from this that even in the amelanotic tumors a substance is produced which needs only oxidation in order to become pigmented. 1988 Jrnl. Amer. Acad. Dermatol. 19 241/1 Patches of vitiligo are amelanotic rather than hypomelanotic because of the loss of melanocytes. 2001 Laurel (Mississippi) Leader-Call 29 Mar. e9/5 Amelanotic melanoma is a melanoma that does not produce enough pigment to have the color of a pigmented lesion. This entry has been updated (OED Third Edition, March 2020; most recently modified version published online December 2021). < |
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