The Collaborative International Dictionary of English v.0.48:
Tomentose \To"men*tose`\, a. [L. tomentum a stuffing of wool, hair, or feathers: cf. F. tomenteux.] (Bot. & Zool.) Covered with matted woolly hairs; as, a tomentose leaf; a tomentose leaf; a tomentose membrane. [1913 Webster]WordNet (r) 3.0 (2006):
tomentose adj 1: covered with densely matted filaments 2: densely covered with short matted woolly hairs; "a tomentose leaf" [syn: tomentose, tomentous]