Infusoria

[ in-fyoo-sawr-ee-uh, -sohr- ]

plural noun

1. protozoans of the phylum Ciliophora (or class Ciliata).
2. (formerly) any of various microscopic organisms found in infusions of decaying organic matter.

Word History and Origins

Origin of Infusoria¹

1780–90; < New Latin, neuter plural of infūsōrius. See infuse, -ory ¹

Example Sentences

Infusoria:—Outer protoplasm firmer and denser; therefore of more definite shape.

From Project Gutenberg

This is mostly represented, of course, by lower organisms, as infusoria and worms.

From Project Gutenberg

His great work on Infusoria appeared in 1838, and was at once recognized as the highest authority on the subject.

From Project Gutenberg

The radiate type is shown by discoid infusoria, by medusæ, by starfish and their allies.

From Project Gutenberg

These cells, called choanocytes, resemble independent animals of the Protozoa, known as flagellate Infusoria or Choanoflagellata.

From Project Gutenberg