Amphibians are a group of cold-blooded vertebrates that are characterized by their ability to live both on land and in water. They are a diverse group of animals that includes frogs, toads, salamanders, newts, and caecilians. Amphibians are an important part of the ecosystem and play a crucial role in maintaining the balance of nature.
Definitions
The term amphibian is derived from the Greek words “amphi” meaning both and “bios” meaning life. The word amphibian refers to an animal that can live both in water and on land. Amphibians are cold-blooded animals that have a backbone and a smooth, moist skin.
Origin
The origin of amphibians can be traced back to the Devonian period, which was about 400 million years ago. During this time, the first amphibians evolved from fish-like ancestors that lived in the water. These early amphibians had lungs and were able to breathe air, which allowed them to venture onto land.
Meaning in different dictionaries
According to the Oxford English Dictionary, an amphibian is “a cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, salamanders, and caecilians.” The Merriam-Webster dictionary defines an amphibian as “an animal that lives both on land and in water, especially a cold-blooded animal such as a frog or toad.”
Associations
Amphibians are associated with water, as they spend a significant amount of their time in aquatic environments. They are also associated with metamorphosis, as many amphibians undergo a dramatic transformation from a larval stage to an adult stage.
Synonyms
Some synonyms of amphibian include:
- Cold-blooded.
- Vertebrate.
- Aquatic.
- Terrestrial.
- Toad.
- Frog.
- Salamander.
- Newt.
- Caecilian.
Antonyms
Some antonyms of amphibian include:
- Warm-blooded.
- Invertebrate.
- Marine.
- Aerial.
The same root words
The same root words as amphibian include:
- Amphibious.
- Amphitheater.
- Amphora.
Example Sentences
- The pond was teeming with amphibians such as frogs and salamanders.
- The newt is a type of amphibian that is found in many parts of the world.
- Amphibians are important indicators of environmental health.
- The toad is an amphibian that is often associated with witchcraft and magic.
- The caecilian is a legless amphibian that resembles a worm.