Definitions

from The Century Dictionary.

  • noun The omission, dropping out, absence, or removal (of something) from a connected series: the opposite of intercalation.
  • noun Specifically The absence, in a race of organisms, of any element in a series of homologous parts, such as a limb or a pair of limbs in an arthropod, or of a vertebra in the spinal column of a vertebrate, considered as evidence that the part in question has been lost or suppressed.

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