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.
n. pl. phyÂ·la (-lÉ). 1. Biology A taxonomic category of organisms ranking below a kingdom and above a class. In the classification of plants, division often replaces phylum. 2. Linguistics A large division of possibly genetically related families of languages or linguistic stocks.