Word Study
telson
CIDE DICTIONARY
telson, n. [NL., fr. Gr. a boundary, limit.].
The terminal joint or movable piece at the end of the abdomen of Crustacea and other articulates. See Thoracostraca. [1913 Webster]
OXFORD DICTIONARY
telson, n. the last segment in the abdomen of Crustacea etc.
Etymology
Gk, = limit
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