Definition of Rhizocephala
: an order of Cirripedia comprising extremely degenerate forms that live as parasites on crabs and hermit crabs, are hermaphroditic though complementary males occur, when young pass through stages similiar to those of a developing barnacle, and afterward attach themselves to suitable hosts where after a complex series of changes they become limbless unsegmented tumid sacs attached by a short peduncle from which rootlike processes penetrate to all parts of the host and absorb its juices — see peltogaster, sacculina
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of rhizocephala
New Latin, from rhiz- + -cephala
Seen and Heard
What made you want to look up Rhizocephala? Please tell us where you read or heard it (including the quote, if possible).