Definitions
from The Century Dictionary.
- noun That larval form of various annelids, mollusks, and mulluscoids which has a circlet of cilia.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) A young larval form of many annelids, mollusks, and bryozoans, in which a circle of cilia is developed around the anterior end.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun zoology A young
larval form of manyannelids ,mollusks , andbryozoans , in which acircle ofcilia is developed around theanterior end.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Ancient Greek a wheel + sphere.
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Examples
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The common ancestor alike of unsegmented worms and of all segmented types is probably the trochosphere larva, which in the Vertebrates is represented by the simple _Keimblase_ or blastula.
Form and Function A Contribution to the History of Animal Morphology
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