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isometropia
isometry
isomorph
isomorphic
isomorphism
isomorphous
isoniazid
ISOO
isooctane
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isooctane
i·so·oc·tane [ ssō ók tàyn ]


noun 
Definition:
 
chemical determining octane numbers: a flammable isomer of octane. Use: determination of the octane number of fuel. (CH3)3CCH2
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