propodium

from The Century Dictionary.

• noun The anterior one of the three median parts into which the foot of some mollusks may be divided: correlated with mesopodium and metapodium. Also propodial. Compare epipodium.

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

• noun The anterior portion of the foot of a mollusk.
• noun The segment which forms the posterior part of the thorax of a hymenopterous insect.

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

• noun zoology The anterior portion of the foot of a mollusk.
• noun zoology The first abdominal segment, when it forms a unit with the thorax of a hymenopterous insect in the group Apocrita.