Definition

1. Noun:
   • Infusorian: A microscopic, single-celled aquatic organism, typically referring to various protozoans and other minute animals found in infusions of decaying organic matter.
   • Animalcule: A general, historical term for a tiny animal, often only visible under a microscope, commonly found in water.

Usage Examples

• Noun:
  • Dưới kính hiển vi, chúng tôi quan sát thấy nhiều thảo trùng. (Under the microscope, we observed many infusorians.)
  • Nước ao tù thường chứa vô số thảo trùng. (Stagnant pond water often contains countless animalcules.)

Advanced Usage

• This term is primarily used in historical, zoological, or specialized scientific contexts in Vietnamese, often reflecting older biological classifications.

Variants and Related Words

• Động vật nguyên sinh (n): Protozoan. A more modern and general term for single-celled eukaryotic organisms, which includes many organisms once called .
  • Trùng giày là một loại động vật nguyên sinh. (The paramecium is a type of protozoan.)

Synonyms

• Infusorian
• Animalcule
• Microorganism (broader term)

Notes on Usage

• is an archaic scientific term in Vietnamese. In modern English and scientific contexts, specific terms like protozoan, ciliate, or paramecium are preferred.
• The reference definition "infusoire" comes from French, meaning "infusorian," which originates from organisms found in "infusions" of hay or other materials.