Definition of eggar in English:


Syllabification: egg·ar
Pronunciation: /ˈegər


  • A large brownish moth that is often active during the day. The caterpillars typically bear irritant hairs and make an egg-shaped cocoon.
    • Many species in the family Lasiocampidae
    More example sentences
    • I'm fairly sure this is the caterpillar of an oak eggar moth, but I would welcome being corrected.
    • The Small Eggar moth is another rarity found only in this part of Shropshire.
    • Adult oak eggars are also preyed upon by several birds, particularly black-headed gulls.


early 18th century: probably from egg1 + -er1.

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