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optical disk
optical double star
optical fiber
optical glass
optical illusion
optical isomerism
optical mouse
optical rotation
optical scanner
optical semiconductor
optical sound
optical tweezers
optician
optics
optima
optimal
optimal contract
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optic vesicle
op·tic ves·i·cle (plural op·tic ves·i·cles)


noun 
Definition:
 
embryonic retina and optic nerve: a fold of the embryonic forebrain that develops into the retina and optic nerve
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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