radiolaria
plural noun
ra·di·o·lar·ia ˌrā-dē-ō-ˈler-ē-ə 
: protozoans that are radiolarians
Word History
Etymology
New Latin, from Late Latin radiolus small sunbeam, from diminutive of Latin radius ray — more at ray
First Known Use
1868, in the meaning defined above
- calculations
- calculative
- calculator
- calculators
- calculatory
- calculi
- calculiform
- calculous
- calculus
- calculus of classes
- calculus of enlargement
- calculus of finite differences
- calculus of individuals
- calculus of relations
- calculus of relatives
- calculus of variations
- calculuses
- Calcutta
- Calcutta hemp
- calcuttae
- calcuttan
- calcuttans
- calcuttas
- caldaria
- Calder