Definitions

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

  • n. The rearmost segment of the body of certain arthropods.
  • n. An extension of this segment, such as the middle lobe of the tail fan of a lobster or the stinger of a scorpion.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The part of an arthropod posterior to the last segment.

from the GNU version of the Collaborative International Dictionary of English

  • n. The terminal joint or movable piece at the end of the abdomen of Crustacea and other articulates. See thoracostraca.

from The Century Dictionary and Cyclopedia

  • n. In zoology, the last segment, or an azygous appendage of the last segment, or the median axis of the last segment, whether in one piece or more, of certain crustaceans and arachmidans, as the middle flipper of a lobster's tail-fin, the long sharp tail of a horseshoe-crab, and the sting of a scorpion.

Etymologies

Greek, limit.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Ancient Greek a boundary, limit. (Wiktionary)

Examples

  • The boys have a triangle shaped telson (tail) while the girls have an oval shaped telson which is used to carry the eggs tucked in between it and the body.

    ScubaBoard

  • Scorpions: They are eight-legged invertebrates with an extended body and an erectile tail that ends with the 'telson' (the sting).

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  • The median length of the carapace was taken, from the tip of the rostrum to the posterior edge, and the length of the abdomen was taken from this point to the edge of the telson.

    Harvard Psychological Studies, Volume 1 Containing Sixteen Experimental Investigations from the Harvard Psychological Laboratory.

  • The new species is distinguished from all the known species of the genus by the combination of broadly rounded rostrum, narrower eyes and the spination of the uropodal endopod and telson.

    Daily News & Analysis

  • So, wait, what does Pam’s gender history have to do with this? reply telson

    Wiccan Employee Files Sexual And Religious Discrimination Lawsuit Against Google

  • - P900 24 year old from madras, works as a team leader in a network support centre. debu aka Devesh Rai - Nokia 9500, treo650 and a telson twc-1150 .. debu is from New Delhi, studying in bangalore, 1st year of engineering, kind of technology lover, Mobile phones are his hobby. (we can see that for sure.) t610 - a fine lady from a remote place in gujarat has been kicking up quite a revolution in posting. orginally from tamilnadu, she is known for very witty replies that holds a meaning in a very mysterious way. k700 - a fine young man from mumbai, doing his MBA. he also owns a paul - nokia 6680 - from bangalore and is a bsc student.

    Esato discussion forum

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Comments

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  • Same crust time, same crustacean.

    April 14, 2011

  • So this would be the segment after the last commercial break but before the start of the next crustacean?

    April 14, 2011

  • Are all of the segments named? Just askin'.

    February 11, 2008

  • last segment of a crustacean.

    February 11, 2008