Dilation
Dilation: The process of enlargement, stretching, or expansion. The word “dilatation” means the same thing. Both come from the Latin “dilatare” meaning “to enlarge or expand.”
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- Dilation and curettage
A minor operation in which the cervix is expanded enough (dilation) to permit the cervical canal and uterine lining to be scraped with a curet (or curette), an instrument shaped like a small spoon. This procedure also is called D and C.
- Dilation, pupil
Pupil dilation: This examination enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits your eye to be examined for signs of disease. To do this, drops are placed into the eye to dilate (widen) the pupil. After […]
- Dilation, pupil (test)
Dilation, pupil (test): Opening the pupil wide enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits the retina to be examined for signs of disease. To do this, drops are placed into the eye to dilate (widen) […]
- Dilator
Dilator: A device used to stretch or enlarge an opening. Patients with scarring of the esophagus can require a dilator procedure to open the esophagus for adequate passage of food and fluids.
- Dinucleotide
Dinucleotide: A sequence of 2 base pairs. A trinucleotide (a triplet of base pairs) may be split into a dinucleotide and a mononucleotide.