Definition

Proper noun: * Family Spirillaceae: A taxonomic family of bacteria characterized by being rigid, spirally curved, and elongate in shape. This family name is used in biological classification.

Usage Notes

• Capitalization: "Family Spirillaceae" is a proper noun and should be capitalized, as it is a formal scientific name.
• Context: This term is used almost exclusively in scientific contexts, particularly in microbiology, bacteriology, and taxonomy. It is not used in everyday conversation.
• Grammar: It functions as a singular noun when referring to the taxonomic group as a whole (e.g., "Family Spirillaceae is...").

Examples

• , belong to Family Spirillaceae.*

Advanced Usage

• Taxonomic Hierarchy: In formal scientific writing, the family name is often presented in italics: . The term "family" may be omitted when the context is clear (e.g., "Members of the ...").

Variants and Related Words

• Spirillaceae: The core family name, often used interchangeably with "Family Spirillaceae" in technical literature.
• Spirillum (noun): A genus of bacteria within the Family Spirillaceae.
• Spirilla (plural noun): A common term for bacteria with a spiral shape, which may include members of this family.

Synonyms

• Scientific Synonym: There are no direct common-language synonyms. In historical or alternative taxonomic systems, the grouping and name may have changed.

Different Meanings

This term has a single, specific scientific meaning. It does not have different meanings in general English.

Noun

1. rigid spirally curved elongate bacteria