species
Word family
- specificadjectiveB1
- specifyverbB2
- specificationnounB2
- specimennounB2
- speciationnounC2
- interbreedverbC1
Synonym discussion
Sense: noun/1
In biological classification, species is the fundamental unit — a group of organisms that can interbreed and produce fertile offspring. A breed is a much smaller subdivision within a domestic species, created by selective breeding for specific traits (like Labrador vs. Golden Retriever, both breeds of the same species). A genus (plural: genera) sits above a species in the taxonomic hierarchy: one genus can contain many related species (e.g. Canis includes wolves, coyotes, and domestic dogs as separate species). A variety is a rank below species used mostly in botany, referring to naturally occurring subgroups that differ slightly from the main species. To illustrate: the species Canis lupus (grey wolf) includes several varieties across different regions, while a 'timber wolf' is a common name for one variety, but all are the same species.
Common collocations
Phrases
- a species of
- species by species
- member of a species
Etymology
Species entered English in the late 1300s from Old French 'especie', which came from Latin 'species' meaning 'a sight, appearance, shape, or kind'. The Latin root 'specere' means 'to look at or behold' — so a species was originally 'the look of something' that allowed people to recognise it as a particular kind. The modern biological meaning, referring to a group of organisms that can interbreed, was first recorded in the mid-1500s and became central to natural science after Linnaeus's classification system in the 1700s.