Definition

1. Noun:
   • A species of bacterium: Hay bacillus is the common name for Bacillus subtilis, a rod-shaped bacterium commonly found in soil, water, and decomposing plant material like hay.

Usage

• The term "hay bacillus" is used primarily in biological and microbiological contexts to refer to this specific, well-studied bacterium.
• It is often cited as a model organism in laboratory research due to its non-pathogenic nature and ease of cultivation.

Examples

• Noun:
  • The hay bacillus is known for its ability to form durable endospores.
  • Researchers studied the antibiotic properties of certain strains of the hay bacillus.

Advanced Usage

• "Hay bacillus" in biotechnology: This bacterium is frequently used in industrial fermentation processes and the production of enzymes.
  • The production of the enzyme subtilisin relies on the hay bacillus.

Variants and Related Words

• Bacillus subtilis (n): The formal, scientific Latin name for the hay bacillus.
• Grass bacillus (n): An occasional synonym for hay bacillus.

Synonyms

• Bacillus subtilis: The scientific synonym.
• Soil bacterium: A general descriptive term, though it refers to many species, not just this one.

Notes

• The hay bacillus is not typically associated with human disease and is generally regarded as safe for use in research and industry.
• Its name originates from its common isolation from infusions of hay.

Noun

1. a species of bacillus found in soil and decomposing organic matter; some strains produce antibiotics