amianthus
Concise Oxford English Dictionary © 2008 Oxford University Press:
amianthus /ˌamɪˈanθəs/
▶noun a variety of asbestos with fine silky fibres which can be woven.
– origin C17: from L. amiantus, from Gk amiantos ‘not defiled’.
'amianthus' also found in these Oxford entries:

