basipodite

from The Century Dictionary.

• noun In crustaceans: The proximal joint of the limb of an arthropod animal, by which the limb is articulated with the body.
• noun The second joint of a developed endopodite, between the coxopodite (protopodite) and the ischiopodite. Milne-Edwards; Huxley. See also cut under endopodite.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Anat.) The basal joint of the legs of Crustacea.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun anatomy The basal joint of the legs of crustaceans.