phylum. 1  Biology. the primary subdivision of a taxonomic kingdom, grouping together all classes of organisms that have the same body plan. 2  Linguistics. a category consisting of language stocks that, because of cognates in vocabulary, are considered likely to be related by common origin. Compare stock (def 13).
There are between 500 and 600 lymph nodes in the average adult human body.
A: Lymph nodes are distributed throughout the body and tend to cluster in groups located in the neck, chest, armpit and groin. Humans typically have between 5... Full Answer >