caiman

/'keimən/ Cách viết khác : (caiman) /'keimən/

Thân thiện

A caiman rests on a muddy riverbank in the sunlight.

Definition

Noun: 1. A semiaquatic reptile: A caiman is a reptile that lives partly in water and partly on land, found in Central and South America. It is similar in appearance to an alligator but is distinguished by having a more heavily armored underside (belly). 2. A member of the Alligatoridae family: It refers specifically to any of several species within the subfamily Caimaninae, which are crocodilian reptiles.

Usage and Examples

• The caiman basked on the riverbank, its armored belly protected from the rough terrain.
• Researchers are studying the population decline of the spectacled caiman in the Amazon basin.
• Unlike its alligator cousin, a key identifying feature of the caiman is the bony plates on its underside.

Advanced Usage

• Ecological Role: The term is often used in ecological and conservation contexts to discuss the health of wetland ecosystems, as caimans are considered apex or keystone predators.
  • The reintroduction of the caiman helped restore balance to the marshland food web.
• Comparative Zoology: Used in scientific descriptions to contrast anatomical features with other crocodilians.
  • The study focused on the osteoderms (bony plates) in the caiman's ventral armor.

Variants and Related Words

• Cayman: An alternative spelling for the same animal.
• Caiman lizard (): A separate, large semi-aquatic lizard from South America named for its superficial resemblance to the crocodilian caiman. This is a distinct animal.
• Alligator: A closely related crocodilian reptile from the United States and China, typically with a less armored belly.
• Crocodilian: The broader biological order (Crocodilia) that includes caimans, alligators, crocodiles, and gharials.

Synonyms

• Crocodilian (in a broad, non-scientific sense)
• Note: "Alligator" is a close relative but not a direct synonym, as they are different genera. In casual conversation, they may be confused, but zoologically they are distinct.

Idioms and Fixed Phrases

• There are no common idioms in English that use the word "caiman." It is primarily a technical/zoological term.

Học thuật

Noun

1. a semiaquatic reptile of Central and South America that resembles an alligator but has a more heavily armored belly

Từ đồng nghĩa

• cayman