telson

telson

(tĕl′sən)

n.

1. The rearmost segment of the body of certain arthropods.

2. An extension of this segment, such as the middle lobe of the tail of a lobster or the stinger of a scorpion.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

telson

the terminal appendage of the last abdominal segment of some arthropods, such as the tail fan in many crustaceans or the sting in the scorpion.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005