| SEC | acquired behavior that is practiced so long it seems innate |
|---|---|
| SEC | the second period of play in a game |
| SEC | pronouns and verbs used to refer to the person addressed by the language in which they occur |
| SEC | the product of two equal terms |
| SEC | the second presentation of a bill in a legislature |
| SEC | 1871-1919 |
| SEC | (baseball or softball) the person who plays second base |
| SEC | apparent power to perceive things that are not present to the senses |
| SEC | the second compartment of the stomach of a ruminant |
| SEC | thinking again about a choice previously made |
| SEC | time period extending from the 13th to the 27th week of gestation |
| SEC | the return of relatively easy breathing after initial exhaustion during continuous exertion |