testcross

noun

test·​cross ˈtes(t)-ˌkrȯs 

: a genetic cross between a homozygous recessive individual and a corresponding suspected heterozygote to determine the genotype of the latter

testcross transitive verb

Word History

First Known Use

1934, in the meaning defined above

Kids Definition

testcross

noun

test·​cross ˈtest-ˌkrȯs 

ˈtes-

: a cross between an individual displaying a recessive trait and one displaying a dominant trait to determine whether or not the dominant trait is heterozygous

Medical Definition

testcross

noun

test·​cross ˈtes(t)-ˌkrȯs 

: a genetic cross between a homozygous recessive individual and a corresponding suspected heterozygote to determine the genotype of the latter

testcross transitive verb