variant
1. [ adjective ] differing from a norm or standard
Examples:

"a variant spelling"

Related terms: different
2. [ noun ] an event that departs from expectations
Synonyms: discrepancy variance
Related terms: deviation deviate
3. [ noun ] (biology) a group of organisms within a species that differ in trivial ways from similar groups
Synonyms: strain var. form
Examples:

"a new strain of microorganisms"

Related terms: taxonomic_group species biology
4. [ noun ] (mathematics) a variable quantity that is random
Synonyms: random_variable stochastic_variable chance_variable variate
Related terms: variable vary
5. [ noun ] something a little different from others of the same type
Synonyms: version variation edition
Examples:

"an experimental version of the night fighter" "an emery wheel is a modern variant of the grindstone" "the boy is a younger edition of his father"

Related terms: type change
Similar spelling:   Varanidae