oc-

prefix assim. form of OB- before c.

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var. of ob- (by assimilation) before c: occident.

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oc-,

prefix. the form of ob- (Cf. ↑ob-) before c, as in occasion.

o/c (no periods),

overcharge.

o.c.,

in the work cited (Latin, opere citato).

Usage op. cit. is the abbreviation now more commonly used.

Oc. or oc.,

ocean.

OC (no periods),

oral contraceptive.

O.C.,

1. Officer Candidate.

2. British. Officer Commanding (C.O. in American use).

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prefix variant spelling of ob- assimilated before c (as in occasion, occlude)