plumulose

from The Century Dictionary.

• In entomology, branching laterally, as the hairs of an insect, and thus resembling downy feathers or plumules.

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

• adjective Having hairs branching out laterally, like the parts of a feather.

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

• adjective Having hairs branching out laterally, like the parts of a feather.