a type of chromosome (=genetic material in a cell) that decides what sex a human or animal will be. In humans, females have two X-chromosomes and males have one.
Synonyms and related words
Genes and genetics
allele
carrier
carry
See alsoY-chromosome
X-chromosome
noun countable biology
US
Word Forms
singular
X-chromosome
plural
X-chromosomes
DEFINITIONS1
1
a type of chromosome (=genetic material in a cell) that decides what sex a human or animal will be. In humans, females have two X-chromosomes and males have one.