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clade
This term is a specialized technical word used primarily in phylogenetics and evolutionary biology. It describes a monophyletic group, meaning it must include the most recent common ancestor and every single descendant of that ancestor. Using this word in a general context to describe any group of animals is often imprecise; it specifically implies a genetic and evolutionary lineage.
In academic writing, it is frequently contrasted with paraphyletic or polyphyletic groups, which do not meet the strict criteria of a clade. Because it is a scientific classification term, it maintains a formal, clinical register and is rarely encountered in casual conversation outside of biological research or paleontology.
Meanings
Examples
The biology teacher explained the avian clade.
This ancient clade appeared during the Paleozoic era.
The phylogenetic analysis revealed a distinct sister clade.
The phylogenetic analysis revealed a distinct sister clade.
Evidence suggests this clade diverged millions of years ago.