Meaning & use

phylum

noun·Academic

A major taxonomic rank in biological classification, grouping organisms that share a basic body plan, below kingdom and above class.

See it in a sentence

Humans belong to the phylum Chordata, along with all other animals possessing a backbone.

Scientists debated whether the strange fossil represented an entirely new phylum of ancient life.

A note on using this word

Phylum sits between kingdom and class in the standard biological classification system used to organize all living things.

Words with a similar meaning

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