You searched for: “sustentaculum
sustentaculum (s) (noun), sustentacula (pl)
1. A strong, moveable spine inserted near the termination of the tarsus of each posterior leg, on the under side, as with some spiders.
2. Some species are aided by peculiar spines; called sustentacula which are attached to the last joints of their hind legs.
This entry is located in the following unit: ten-, tent-, tin-, -tain, -tainment, -tenance, -tinence (page 7)