English > reptilian: 2 senses > noun 1, animal| Meaning | Any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms. |
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| Synonym | reptile |
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| Member of | Reptilia, class Reptilia | Class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates |
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| Narrower | Diapsida, subclass Diapsida | Used in former classifications to include all living reptiles except turtles |
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| anapsid, anapsid reptile | Primitive reptile having no opening in the temporal region of the skull |
| diapsid, diapsid reptile | reptile having a pair of openings in the skull behind each eye |
| synapsid, synapsid reptile | Extinct reptile having a single pair of lateral temporal openings in the skull |
| Broader | vertebrate, craniate | animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium |
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| Spanish | reptiles, reptilia, reptil, réptil |
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| Catalan | reptil, rèptil |
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| Adjectives | reptilian | of or relating to the class Reptilia |
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