1. The lowest class of animalcules, which are all of the simplest type of organization.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• protool,
• protazoan,
• protocos,
• protoco,
• protoza,
• protozoas,
• orotozoa,
• lrotozoa,
• -rotozoa,
• 0rotozoa,
• peotozoa,
• pdotozoa,
• protosoal,
• -protozoal,
• photopsey,
• Phitozoa,
• Prostolia,
• Protonuma,
• protopoep,
• Protopore

• protozoan,
• protest,
• protocol,
• pretzel,
• protozoic,
• protozoon,
• protozoal,
• protector,
• protect,
• Pratico,
• protist,
• pritzelago.

The adjective form of the word "protozoa" is "protozoan".

The plural of the "protozoa" can be the "protozoa".

The singular of the "protozoa" can be the "protozoan".