Definition of silkworm
: a moth whose larva spins a large amount of strong silk in constructing its cocoon; especially : an Asian moth (Bombyx mori of the family Bombycidae) whose rough wrinkled hairless caterpillar produces the silk of commerce
Recent Examples of silkworm from the Web
Gypsy moths were first brought to the U.S. in 1869 in a misguided attempt to use them as silkworms.
Ann Galonska will bring live silkworms and will take you through the procedures that results in silk.
To create the mutant spinners, Fraser and his colleagues used a movable sequence of DNA called the piggyBac transposon to insert snips of spider genes into silkworm embryos.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'silkworm'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of silkworm
before 12th century
SILKWORM Defined for English Language Learners
Definition of silkworm for English Language Learners
: a caterpillar that produces silk which is used to make thread or cloth
SILKWORM Defined for Kids
Definition of silkworm for Students
: a yellowish caterpillar that is the larva of an Asian moth (silk moth or silkworm moth), is raised in captivity on mulberry leaves, and produces a strong silk that is the silk most used for thread or cloth
Seen and Heard
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