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WordReference Random House Unabridged Dictionary of American English © 2024phy•to•saur (fī′tə sôr′),USA pronunciation n. - Paleontologyany armored, semiaquatic reptile of the extinct order Phytosauria, of the Mesozoic Era, resembling the crocodile but unrelated, having the nostrils high on the snout and with well-developed hind limbs suggestive of bipedal ancestors.
- Neo-Latin Phytosauria (see phyto-, -saur, -ia)
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