Word Study
silkworm
CIDE DICTIONARY
silkworm, n. [AS. seolcwyrm.].
The larva of any one of numerous species of bombycid moths, which spins a large amount of strong silk in constructing its cocoon before changing to a pupa. [1913 Webster]
" The common species (Bombyx mori ) feeds on the leaves of the white mulberry tree. It is native of China, but has long been introduced into other countries of Asia and Europe, and is reared on a large scale. In America it is reared only to small extent. The Ailanthus silkworm (Philosamia cynthia ) is a much larger species, of considerable importance, which has been introduced into Europe and America from China. The most useful American species is the Polyphemus. See Polyphemus ." [1913 Webster]
OXFORD DICTIONARY
silkworm, n. the caterpillar of the moth Bombyx mori, which spins its cocoon of silk.
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