Word Of The Day
Dorland's Word of the Day is a great way to broaden your knowledge of medical terminology. With a new and interesting term brought to you from the 32nd edition of Dorland's Illustrated Medical Dictionary each day, it's an easy and fun way to increase your medical vocabulary!
You can view a new word on this website each day.
triplet repeat disorders
disorders caused by unstable, dynamic mutations that result in expansion of triplet repeats within the affected gene, leading to abnormalities in gene expression and function. The disorders differ significantly in such factors as inheritance pattern; base sequence, size, and intragenic location of the affected repeat; and degree of expansion and of instability of the repeats; but the underlying mechanism appears to be slipped strand mispairing during DNA replication. The group includes Huntington disease, myotonic dystrophy, Friedreich ataxia, and fragile X syndrome.
Word of the Day Archive
variable number tandem repeats (VNTM)
different numbers of tandemly repeated oligonucleotide sequences in the alleles of a gene; such polymorphism can be useful in genetic mapping.
an oocyte very early in its development.
diarrhea caused by something the patient is doing to his or her own body, usually surreptitious laxative abuse.
destruction of tissue by heating it until it vaporizes, such as with a laser for therapeutic purposes.
descending transtentorial herniation with downward shift of the brainstem and diencephalon, causing Cheyne-Stokes respirations with pinpoint nonreactive pupils.
dermatitis due to self-inflicted trauma, usually produced by mechanical means, burning, or application of chemical irritants or caustics. Called also dermatitis artefacta.
dental caries beneath the margin of an existing tooth restoration.