Phoca

Học thuật
Thân thiện
Definition

Noun * A genus of marine mammals: Phoca is the type genus of the family Phocidae, which comprises the earless or true seals. Members of this genus are characterized by their lack of external ear flaps and their ability to move on land by undulating their bodies.

Usage Examples
  • Noun:
    • The harbor seal, Phoca vitulina, is a common species within the genus Phoca.
    • Scientists study the behavior of phoca to understand marine mammal ecology.
    • The word phoca is often used in scientific and zoological contexts.
Advanced Usage
  • In taxonomic classification: The term is used precisely in biological taxonomy to categorize specific seal species. For example, the genus name is always italicized, and the species name follows it.
    • The spotted seal was recently reclassified from Phoca largha to Phoca vitulina largha.
Variants and Related Words
  • Phocid (noun/adjective): A member of the family Phocidae; relating to true seals.
    • Walruses are not phocids; they belong to a different family.
  • Phocine (adjective): Of or relating to the subfamily Phocinae, which includes the genus .
    • The researcher specialized in phocine seal populations.
Synonyms
  • Earless seal (noun): The common name for seals in the family Phocidae.
  • True seal (noun): Another common name distinguishing phocids from eared seals (sea lions and fur seals).
Notes on Meaning
  • Scientific vs. General Use: In everyday language, people typically use the common names "seal," "harbor seal," or "earless seal." The word is primarily used in scientific, academic, or very specific zoological discussions.
  • Historical/Literary Use: The word has Latin and Greek origins, historically referring to a seal. It may appear in older biological texts or classical references.
Noun
  1. type genus of the Phocidae: earless seals

Từ đồng nghĩa

Từ gần giống

Từ chứa "Phoca"