(1):

(n.) The fine, soft thread produced by various species of caterpillars in forming the cocoons within which the worm is inclosed during the pupa state, especially that produced by the larvae of Bombyx mori.

(2):

(n.) Hence, thread spun, or cloth woven, from the above-named material.

(3):

(n.) That which resembles silk, as the filiform styles of the female flower of maize.