caiman
/'keimən/ Cách viết khác : (caiman) /'keimən/
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.
Noun
-
a semiaquatic reptile of Central and South America that resembles an alligator but has a more heavily armored belly
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