from The Century Dictionary and Cyclopedia

  • n. The state or quality of being exserted.


Sorry, no etymologies found.


  • The fact being incontestable, we must evidently admit that the exsertion of the organ is rendered possible only by the expansion of the tracheal vesicles.

    The Life of the Bee

  • A prolonged flight must first expand his two great tracheal sacs; these enormous receptacles being gorged on air will throw back the lower part of the abdomen, and permit the exsertion of the organ.

    The Life of the Bee

  • From the foregoing facts I think we must admit that there exists a perfect gradation in fertility between species which when crossed are quite fertile (as in Rhododendron, Calceolaria, &c.), and indeed in an extraordinary degree fertile (as in Crinum), and those species which never produce offspring, but which by certain effects (as the exsertion of the pollen-tube) evince their alliance.

    The Foundations of the Origin of Species Two Essays written in 1842 and 1844


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