uropod

Etymology
.

Noun

 * 1)  either of the two posterior abdominal appendages of the lobster, shrimp and some other crustaceans.
 * 2)  the hind part of polarized leukocytes, mostly involved in cell-to-cell interaction, cell activation and apoptosis.
 * 1)  the hind part of polarized leukocytes, mostly involved in cell-to-cell interaction, cell activation and apoptosis.