from The Century Dictionary.

  • noun In vegetable teratoh, a condition in which there is an abnormal increase in the number of leaves starting from a particular point; also, that condition in which the number of leaflets in a compound leaf is abnormally increased.


Sorry, no etymologies found.


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  • Those instances in which the actual number of leaves is increased, so that in place of one there are more leaflets, may be included under the term "pleiophylly," which may serve to designate both the appearance of two or more leaves in the place usually occupied by a single one, and also those normally compound leaves in which the number of leaflets is greater than usual.

    Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters


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