any of various rounded galls produced on oaks, especially the horned oak gall.
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Also called oak apple.
Origin of oak gall
First recorded in 1760–70
Words nearby oak gall
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for oak gall
Waterproof inks are sometimes used, and of these the oak-gall ink is undoubtedly the best.Directions for Collecting and Preserving Insects|C. V. Riley