embryonal tumor

n.

A usually malignant tumor arising during intrauterine or early postnatal development from the rudiments of an organ or from immature tissue and forming immature structures characteristic of the part from which it arises.embryoma

Nearby words

  1. embryoma of kidney,
  2. embryonal carcinoma,
  3. embryonal carcinosarcoma,
  4. embryonal leukemia,
  5. embryonal rhabdomyosarcoma,
  6. embryonic,
  7. embryonic area,
  8. embryonic disk,
  9. embryonic membrane,
  10. embryonic shield


The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.