actinula
/akˈtɪnjʊlə/Zoology
noun
In some hydrozoans: a mobile tentaculate larva, which develops from a planula and transforms into an adult polyp or medusa after dispersal.
Origin
Late 19th century; earliest use found in George Allman (1812–1898), naturalist. From ancient Greek ἀκτῖν-, ἀκτίς ray + -ula, after planula.
- Ostwald, Friedrich Wilhelm
- Ostwald pycnometer
- Ostwald ripening
- Ostwald's dilution law
- Ostwald's pycnometer
- Ostwald's viscometer
- Ostwald viscometer
- Ostyak
- Ostyak Samoyed
- OSU
- O'Sullivan, Maureen
- os uteri
- Oswald, Lee Harvey
- Oswald of York, St
- Oswego
- Oswego bass
- Oswego biscuit
- Oswego tea
- Osyris
- OT
- -ot
- otacousticon
- Otago
- Otaheit
- Otaheite