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acetophenone
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acetyl coenzyme A
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acetylcholinesterase
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Acheulian

A·cheu·li·an [ ə shlee ən ]


noun 
Definition:
 
period of Paleolithic era: a period of the Paleolithic era during which people made symmetrical stone hand axes

[Early 20th century. After the French village of Saint-Acheul near Amiens]

A·cheu·li·an adjective
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