Ectodermal: Pertaining to the ectoderm or to tissues derived from the ectoderm, one of the three primary germ cell layers that make up the very early embryo. The ectoderm is the outermost of the three layers.
- Ectodermal dysplasia
Ectodermal dysplasia: A genetic disorder in which the skin and associated structures (the hair, nails, teeth, and sweat glands) develop abnormally. X-linked anhidrotic (nonsweating) ectodermal dysplasia is most common; because it is an X-linked trait, it mainly affects males. There is also an autosomal dominant form that affects both males and females. The term ectodermal […]
Ectomy: The surgical removal of something. For example, a lumpectomy is the surgical removal of a lump, a tonsillectomy is the removal of the tonsils, and an appendectomy is removal of the appendix.
Ectoparasite: A parasite that lives on or in the skin but not within the body. Fleas and lice are ectoparasites. Infestation with an ectoparasite is called an ectoparasitosis.
Ectoparasitosis: Infestation with an ectoparasite, a parasite that lives on or in the skin. The four major ectoparasitoses are pediculosis, scabies, cutaneous larva migrans and tungiasis (sand-flea disease).
- Ectopia cordis
Ectopia cordis: A birth defect that results in an abnormal location of the heart, usually outside the chest. REFERENCE: Mercer LJ, Petres RE and Smeltzer JS. Ultrasonic diagnosis of ectopia cordis. Obstet Gynecol 61:. 523, 1983