tetrapod
Speech parts
1. tetrapod - Noun
2. tetrapod - Adjective
Meaning
An insect characterized by having but four perfect legs, as certain of the butterflies.
Source: Webster's dictionarySynonyms
Hypernyms
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Phrases with the word
Examples
A tetrapod is any member of the taxonomic unit Tetrapoda (which is defined by descent from a specific four-limbed ancestor) whereas a quadruped actually uses four limbs for locomotion.
Its absence in fish and aquatic arthropods is notable, as many have life stations similar to a terrestrial or tetrapod counterpart, or could otherwise make use of the added flexibility.
In most tetrapod species, there are two paired thyroid glands - that is, the right and left lobes are not joined together.
“Now we have evidence of two types of Devonian tetrapod from the other end of Gondwana, on the other side of the South Pole, in the Antarctic Circle,” Dr Robert Gess, one of the leading researchers, told AFP.
Land plants as well as freshwater species, such as our tetrapod ancestors, were relatively unaffected by the Late Devonian extinction event.
Like their amphibious tetrapod predecessors, they had lungs and limbs.