| Noun | 1. | sec - 1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites |
| 2. | sec - ratio of the hypotenuse to the adjacent side of a right-angled triangle Synonyms: secant | |
| 3. | SEC - an independent federal agency that oversees the exchange of securities to protect investors Synonyms: Securities and Exchange Commission | |
| Adj. | 1. | sec - (of champagne) moderately dry Synonyms: unsweet |
| SEC - Single Edge Contact Cartridge |
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