propodium

plural propodia · alternative propodeum

1. biologyThe anterior portion or lobe of the foot of certain mollusks.

   1 more example

   Crawling [in Bullia] is achieved by alternate movement and anchorage of the propodium and metapodium. With the posterior region of the foot anchored, the propodium is raised slightly and thrust forwards. At the same time the cephalic shield advances and is raised. In the second phase, the propodium becomes anchored anteriorly[…]

   1982, Harold Barnes, Oceanography and Marine Biology

2. biologyThe first abdominal segment, when it forms a unit with the thorax of a hymenopterous insect in the group Apocrita.