Definitions

1. noun

A part of the wing of an insect, especially a beetle, that is involved in the process of flying, particularly the hindwings or hind margins of the wings.

“The scientist studied the unique propagines of the beetle species.”

2. noun

In certain contexts, the propagines refer to the parts of a sail or a wing that provide lift.

“The sailors adjusted the propagines of the sail to increase their speed.”