platyrrhine

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platyrrhine

A platyrrhine monkey swings through the rainforest canopy.

Definition

  1. Adjective:

    • Relating to a group of New World monkeys characterized by having nostrils that are far apart and facing sideways. This is a primary biological classification.
    • Having a broad nose with nostrils that are far apart. This descriptive sense can apply to the facial structure of these monkeys or, by analogy, to people.

  2. Noun:

    • A monkey of the New World group characterized by widely separated nostrils and long, often prehensile tails. This group includes monkeys such as capuchins, howlers, and spider monkeys.
Usage Examples

  • Adjective:

    • The capuchin is a classic example of a platyrrhine primate.
    • The fossil record shows clear platyrrhine dental features.

  • Noun:

    • Howler monkeys and spider monkeys are both platyrrhines.
    • The zoo's new exhibit features several species of platyrrhine.
Advanced Usage
  • The term is primarily used in technical, zoological, or anthropological contexts. It is the counterpart to catarrhine, which refers to Old World monkeys, apes, and humans, who have closely spaced, downward-facing nostrils.
  • In anatomical description, a platyrrhine nasal index is a specific measurement indicating a broad nose.
Variants and Related Words
  • Platyrrhinian (Adjective & Noun): A less common variant with the same meaning.
  • New World monkey (Noun): The common name for the group to which platyrrhines belong.
  • Catarrhine (Adjective & Noun): The contrasting term for primates with narrow, close-set nostrils (Old World monkeys, apes, humans).
Synonyms
  • Broad-nosed (Adjective): Descriptive, but not a technical taxonomic synonym.
  • New World monkey (Noun): The common name for the group.
Antonyms
  • Catarrhine (Adjective & Noun): Having narrow, close-set nostrils; relating to Old World monkeys, apes, and humans.
platyrrhine

A platyrrhine monkey swings through the rainforest canopy.

Adjective
  1. of or related to New World monkeys having nostrils far apart or to people with broad noses
Noun
  1. hairy-faced arboreal monkeys having widely separated nostrils and long usually prehensile tails

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