i Register
In some senses, amphibian is marked as obsolete. Watch for register when choosing this word.
amphibian
UK /æmˈfɪbɪən/ US /æmˈfɪbɪən/
adj 3noun 2
Definitions
adj
1
Of or relating to the class Amphibia.
2
Capable of operating on both land and water; amphibious.
3
Having two natures.
noun
1
An animal of the Amphibia; any vertebrate that does not have amniotic eggs, living both on land and in water.
2
A vehicle which can operate on both land and water.
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