infusorial

The scientist examines infusorial organisms in a drop of pond water.

Definition

1. Adjective
   • Relating to infusorians: "infusorial" describes something that pertains to or is characteristic of infusorians, a group of microscopic aquatic organisms (often protozoans like ciliates) found in infusions of decaying organic matter.
   • Containing infusorians: It can also refer to soil, water, or other materials that contain these microorganisms.

Usage Examples

• (The water contained many infusorians.)
• (Soil containing remains of infusorians.)

Advanced Usage

• "Infusorial earth": a geological term for diatomaceous earth, composed of the siliceous shells of diatoms (a type of infusorian).
  • Infusorial earth is commonly used as a mild abrasive and filter aid. (The material derived from infusorian fossils has practical applications.)

Variants and Related Words

• Infusorian (noun): a microscopic aquatic organism, especially a ciliate protozoan.
  • The infusorian moved rapidly through the drop of water. (The tiny organism was highly active.)
• Infusoria (plural noun): a class of microscopic organisms, including ciliates and flagellates.
  • Infusoria are common in stagnant water. (These microorganisms thrive in still environments.)

Synonyms

• Microscopic: so small as to be visible only with a microscope.
• Protozoan: relating to single-celled organisms that are often microscopic.

Related Idioms

• No common idioms involve "infusorial," as it is a specialized scientific term.