Growth of hair in excess of the normal. SEE ALSO: hirsutism. SYN: hypertrichiasis. [hyper- + G. trichosis, being hairy]
- nevoid h. congenital growth of hair abnormal for its site, texture, color, or length; often associated with congenital melanocytic nevi.
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hy·per·tri·cho·sis (hi″pər-trĭ-koґsis) [hyper- + trich- + -osis] excessive growth of the hair. Called also polytrichia and polytrichosis. Cf. hirsutism.Medical dictionary. 2011.