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ProtosulphuretProtosynthex
Prototheria
prototherian
Prototracheata
prototypal
Prototype
Prototyper
prototypic
prototypical
prototyping
Protovertebra
Protovertebral
Protoxide
protoxide of nitrogen
Protoxidize
-- Protozoa --
protozoal
protozoal infection
Protozoan
Protozoic
protozoological
protozoologist
protozoology
Protozoon
Protozoonite
Protracheata
Protract
Protracted
Protracted meeting
protractedly
Protracter
protractible
Protozoa
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Pro`to`zo´a
| n. pl. | 1. | (Zool.) The lowest of the grand divisions of the animal kingdom. |
| Noun | 1. |  Protozoa - in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifersSynonyms: phylum Protozoa |