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O_____
Definitions
the branch of zoology that studies eggs (especially birds' eggs and their size, shape, coloration, and number)
Word origin
From oo- (“relating to eggs or ova”, prefix) + -logy (“branch of learning or study of a subject”, suffix). The word is cognate with French oologie, Late Latin ōologia.
Used in a sentence
“Barely a day went by when Franklin [Delano Roosevelt] didn't talk about the world of birds. At ten years old he started dabbling in oology, the collecting of eggs and nests.”
Source: Wiktionary, CC BY-SA 4.0
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