squalus

Thân thiện

A marine biologist carefully observes a squalus swimming in a clear tank.

Definition

1. Proper noun:
   • A genus of sharks: Squalus is the genus name for a group of sharks commonly known as spiny dogfishes. These are small to medium-sized sharks characterized by having two dorsal fins, each preceded by a sharp spine.

Usage Examples

• Proper noun:
  • The biologist identified the specimen as belonging to the genus Squalus.
  • Squalus acanthias, the spiny dogfish, is found in temperate oceans worldwide.

Advanced Usage

• In taxonomic and scientific writing, is always italicized as it is a genus name. It is often followed by a specific epithet to name a particular species.
  • The study focused on the population dynamics of Squalus suckleyi.

Variants and Related Words

• Squalid (adj): This is a different, unrelated word meaning extremely dirty and unpleasant, often due to poverty or neglect.
  • They lived in squalid conditions.
• Squalene (n): A biochemical compound, a triterpene, originally isolated from shark liver oil (including from species).
  • Squalene is used in some vaccine adjuvants and cosmetics.

Synonyms

• Spiny dogfish genus: A descriptive synonym referring to the common name of its members.
• Dogfish sharks: A common name for sharks in this genus and related families.

Notes on Meaning

• The word is used almost exclusively in scientific contexts (biology, ichthyology, taxonomy). It is not used in everyday conversation.
• It refers specifically to the taxonomic grouping (the genus), not to an individual shark. An individual shark is a "spiny dogfish" or a member of the genus .

Học thuật

Noun

1. spiny dogfishes

Từ đồng nghĩa

• Squalus
• genus Squalus