rare. [f. L. quart-us fourth + -INE4 and 5.]

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  1.  Bot. Mirbel’s name for a fourth integument supposed by him to occur in some ovules.

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1832.  Lindley, Introd. Bot., 158. [Quoting Mirbel] I have only discovered the quartine in ovula of which the tercine is incorporated at an early period with the secondine.

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  2.  Chem. (See quot.)

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1873.  Ralfe, Phys. Chem., p. xviii. Triads. Glycerin Series. Quartine or Crotonylene C4 H6.

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