Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A supposed fourth integument of an ovule, counting from the outside.

from the GNU version of the Collaborative International Dictionary of English

  • n. A supposed fourth integument of an ovule, counting from the outside.

from The Century Dictionary and Cyclopedia

  • n. In botany, a supposed fourth integument of some ovules, counting from the outermost. It is really only a layer of the secundine or of the nucleus.

Etymologies

Latin quartus, "fourth". (Wiktionary)

Examples

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