oak apple
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English[edit]
Alternative forms[edit]
Noun[edit]
oak apple (plural oak apples)
- A spherical type of oak gall, produced by an oak gall wasp (tribe Cynipini). [from 15th c.]
- 1665, Robert Hooke, Micrographia, section XXV:
- [T]he small Apples which I have often observ'd to grow on the leaves of an Oak call'd Oak-apples […] are nothing but the Matrices of an Insect, as I elsewhere show.
Derived terms[edit]
Translations[edit]
oak gall — see oak gall