Medical Dictionary
species
noun spe·cies \ˈspē-(ˌ)shēz, -(ˌ)sēz\
plural species
Medical Definition of SPECIES
1
a : a category of biological classification ranking immediately below the genus or subgenus, comprising related organisms or populations potentially capable of interbreeding, and being designated by a binomial that consists of the name of the genus followed by a Latin or latinized uncapitalized noun or adjective agreeing grammatically with the genus name b : an individual or kind belonging to a biological species
2
: a particular kind of atomic nucleus, atom, molecule, or ion <production of DNA damage by active oxygen species>
Seen & Heard
What made you want to look up species? Please tell us where you read or heard it (including the quote, if possible).