[ am-ee-an-thuh s ]
/ ˌæm iˈæn θəs /

noun Mineralogy.

a fine variety of asbestos, with delicate, flexible filaments.

Origin of amianthus

1660–70; < Latin amiantus < Greek amíantos, equivalent to a- a-6 + mian- (stem of miaínein to defile, make impure) + -tos verbal adjective suffix

Related forms

am·i·an·thine [am-ee-an-thuh n, -thahyn] /ˌæm iˈæn θən, -θaɪn/, adjectiveam·i·an·thoid, am·i·an·thoi·dal, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for amianthus

British Dictionary definitions for amianthus


/ (ˌæmɪˈænθəs) /


any of the fine silky varieties of asbestos

Derived Forms

amianthine, amianthoid or amianthoidal, adjective

Word Origin for amianthus

C17: from Latin amiantus, from Greek amiantos unsullied, from a- 1 + miainein to pollute
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012