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.
focal epithelial hyperplasia
hyperplasia of oral mucous membranes, especially on the lower lip, with sessile papules, caused by infection with a human papillomavirus, seen most often in children and adolescents. Called also Heck disease.
Word of the Day Archive
hyperpigmentation of sun-exposed areas of photosensitized skin.
having branching mitochondrial cristae; said of amebae.
chronic kidney disease
gradual loss of kidney function, with progressively more severe renal insufficiency; symptoms may include polyuria, anorexia or nausea, dehydration, and neurological symptoms. Stage 1 involves a minimally decreased glomerular filtration rate (GFR). Stage 2 has a GFR of 60 to 89. Stage 3 has a moderately decreased GFR (30 to 59). Stage 4 has a severely decreased GFR (15 to 29). Stage 5 has a GFR below 15 (end-stage renal disease), and patients require dialysis. Called also chronic renal failure.
an inherited trait that is phenotypically expressed only when the mutant allele is present in the homozygous state.
microtubule organizing center
general term for a region of cytoplasm from which microtubules radiate and which regulates their number and organization; in animal cells, the centrosome is the primary microtubule organizing center.
a rare type of erythroderma seen primarily in elderly Japanese patients, characterized by papules and pruritus sparing the skinfolds; in some cases it seems to be paraneoplastic.
Helicobacter pylori gastritis
gastritis caused by the presence of Helicobacter pylori in the stomach mucosa; H. pylori may be present for many years as chronic gastritis before finally causing an attack of acute gastritis.