Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or pertaining to an early or original race or lineage; primitive.

from The Century Dictionary and Cyclopedia

  • In geology, noting crystalline or fire-formed rocks, in contradistinction to deuterogenic, which notes those formed from them by mechanical action.
  • In botany, noting those intercellular spaces of plants which are formed when the tissues begin to differentiate. Compare hysterogenic, lysigenous, sehizogenic.

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