from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A small asexual spore, as that formed by some bacteria.
  • n. The inner layer of the wall of a spore.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The inner layer of a spore
  • n. A small vegetative spore produced by some bacteria

from the GNU version of the Collaborative International Dictionary of English

  • n. The thin inner coat of certain spores.

from The Century Dictionary and Cyclopedia

  • n. In botany, the inner coat of a spore, corresponding to the intine of a pollen-grain. Compare epispore, exospore.
  • n. In bacteriology, a spore formed within a cell, as distinguished from arthrospore.
  • n. Also endosporium.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a small asexual spore that develops inside the cell of some bacteria and algae


Sorry, no etymologies found.


  • I can form an 'endospore', a little coating that protects me.

    Bacillus subtilis

  • When I'm in my endospore I can survive very high temperatures.

    Bacillus subtilis

  • The true spore or endospore begins with the appearance of a minute granule in the protoplasm of a vegetative cell; this granule enlarges and in a few hours has taken to itself all the protoplasm, secreted a thin but very resistive envelope, and is a ripe ovoid spore, smaller than the mother-cell and lying loosely in it (cf.figs. 6, 9, 10, and 11).

    Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"

  • Nor must we overlook the possibility that the endospore-formation in non-motile bacteria more than merely resembles the development of azygospores in the Conjugatae, and some Ulothricaceae, if reduced in size, would resemble them.

    Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"

  • Its "capture and destroy" approach using the company's proprietary plasma technology will kill 99.999% of trapped bacteria and viruses, and 99.99% of hard to destroy bacterial endospore microorganisms.


  • The bacterial endospore (spore) has recently been proposed as a new surface display system.

    BioMed Central - Latest articles

  • The new technology works by looking for dipicolinic acid -- a major component of endospores and evidence of endospore growth -- by first applying terbium to a dime-sized area.

    News and Features - NASA's Jet Propulsion Laboratory

  • Using its internal plasma technology, the TriClean Pro will destroy 99. 999% of trapped bacteria and viruses, and 99. 99% of hard to kill bacterial endospore microorganisms.


  • The article mentions that the bacteria which didn't protect themselves with the endospore stage died within minutes.


  • a double wall, a thin delicate wall of unaltered cellulose, the endospore or intine, and a tough outer cuticularized exospore or extine.

    Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1


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