Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A cellular layer derived from the nucleus of an ovule and surrounding the embryo sac.

from the GNU version of the Collaborative International Dictionary of English

  • n. A cellular layer derived from the nucleus of an ovule and surrounding the embryo sac. Cf. quintine.

from The Century Dictionary and Cyclopedia

  • n. In botany, a supposed third coat of an ovule, really a layer of the primine or secundine, or the secundine itself.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

French, from Latin tertius the third.

Examples

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