brachials
/ˈbreɪkiəlz/
noun
- The arm-like parts of an animal, especially the feathery arms of a crinoid (a marine animal) used for feeding.
- Each of the crinoid's brachials is covered in tiny tube feet that help capture food.
- The crinoid uses its brachials to filter plankton from the water.
- Fossil brachials are often found in limestone deposits from ancient seas.