phylum defined in 1951 yearphylum - phylum;
phylum - One of the major kinds of group used in classifying animals, e.g. phylum Chordata. Consists of one class or a number of similar classes. Phylum is not often used in plant classification, the term Division being substituted. See also: Classification.
near phylum in Knolik
definition of word "phylum" was readed 902 times