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Eating, boring in, or destroying, wood; -- said especially of certain insect larvæ, crustaceans, and mollusks.

Capable of boring or cutting wood; -- said of many insects.

), a slender cord or duct which connects the yolk glands with the egg chambers in certain insects, as in the aphids. -- Yolk gland (Zoöl.), a special organ which secretes the yolk of the eggs in many turbellarians, and in some other invertebrates. See Illust. of Hermaphrodite in Appendix. -- Yolk sack (Anat.), the um…

Of or pertaining to a tribe (Zalambdodonta) of Insectivora in which the molar teeth have but one V-shaped ridge.

An artificial group comprising various carnivorous and insectivorous animals.