n. 1. An opening or a cavity into which an inserted part is designed to fit: a light-bulb socket. 2. Anatomy a. The concave part of a joint that receives the end of a bone. b. A hollow or concavity into which a part, such as the eye, fits. tr.v. sock·et·ed, sock·et·ing, sock·ets To furnish with or insert into a socket. [Middle English soket, from Anglo-Norman, spearhead, diminutive of soc, plowshare, probably of Celtic origin; see sū- in the Appendix of Indo-European roots.] |
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