trisomy

[ trahy-soh-mee ]
/ ˈtraɪ soʊ mi /

noun Pathology.

an abnormality characterized by the presence of an additional chromosome to the normal diploid number.

Origin of trisomy

First recorded in 1925–30; tri- + -some3 + -y3

Example sentences from the Web for trisomy

British Dictionary definitions for trisomy

trisomy
/ (ˈtraɪsəʊmɪ) /

noun

the condition of having one chromosome of the set represented three times in an otherwise diploid organism, cell, etc. Trisomy of chromosome 21 results in Down's syndrome

Derived forms of trisomy

trisomic (traɪˈsəʊmɪk), adjective

Word Origin for trisomy

C20: from tri- + ( chromo) som ( e) + -y ³

Medical definitions for trisomy

trisomy
[ trī-sōmē, trīsō′- ]

n.

The condition of having three copies of a given chromosome or chromosome segment in each somatic cell rather than the normal number of two.

Other words from trisomy

tri•somic adj.

Scientific definitions for trisomy

trisomy
[ trī-sōmē, trīsō′- ]

The condition of having three copies of a given chromosome in each body cell rather than the normal number of two.