Phylum (noun)

A major division of the animal or plant kingdom, ranked above class and below kingdom and typically consisting of several classes.

Origin:

Phylum is derived from the greek word "phylum" meaning race or tribe, it was first recorded in english in the early 18th century.

Examples:

1. The phylum Chordata includes all animals that have a spinal cord, including fish, birds, and mammals.
2. The phylum Arthropoda is the largest animal phylum, including insects, crustaceans, and arachnids.
3. The phylum Mollusca includes snails, slugs, and squids.
4. The phylum Porifera includes sponges.
5. The phylum Cnidaria includes jellyfish, corals, and sea anemones.