a doctor who administers agents that cause loss of sensation during surgery anasthesiologist a doctor specializes in treatment of disease using high-energy radiation
The word phylum (plural: phyla) is a category used to classify marine organisms. In this article, you can learn the definition of phylum, how it is used, and examples of phyla used to categorize marine life.
1. (Biology) a major taxonomic division of living organisms that contain one or more classes. An example is the phylum Arthropoda (insects, crustaceans, arachnids, etc, and myriapods).