adj. 1. Ring-shaped. 2. Botany Rolled up in the form of a coil with the tip in the center, as an unexpanded fern frond. [Latin circinātus, past participle of circināre, to make circular, from circinus, pair of compasses; see CIRCINUS.] circi·nate′ly adv. ![]() (click for a larger image) circinatefern frond |
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