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Dictionary Suite
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endocrinology the science of the structure, functions, and secretions of endocrine glands.
endoderm the inner layer of cells of an embryo, which develops into the linings of the digestive tract, certain glands, and other internal organs.
endodontics (used with a sing. verb) the branch of dentistry that diagnoses and treats diseases of the dental pulp; root canal therapy.
endogamy marriage within one's own class, clan, caste, tribe, or other social unit. (Cf. exogamy.) [2 definitions]
endogenous coming or produced from or developing within, as certain spores, or due to internal conditions, as certain diseases. (Cf. exogenous.) [2 definitions]
endometrial of or pertaining to the mucous membrane that lines the uterus.
endometriosis the abnormal growth of uterine tissue in other areas of the vaginal tract or on the ovaries.
endometrium the membrane that lines the uterus.
endomorphic of, relating to, or designating a heavy body type characterized by relative prominence of the abdomen and fatty tissues. (Cf. ectomorphic, mesomorphic.) [2 definitions]
endoplasm the inner, comparatively fluid part of the cellular material surrounding the nucleus. (Cf. ectoplasm.)
end organ any specialized receptor at the end of a sensory or motor nerve fiber.
endorphin one of several peptides secreted in the brain that have a tranquilizing, euphoric, or pain-relieving effect on the body.
endorse to approve or give support to. [2 definitions]
endorsement a statement given in support of a person or product, as in an advertisement or political campaign. [3 definitions]
endoscope a long, slender, tubular optical instrument inserted into an inner, hollow body part, such as the lungs or bowel, esp. for examination, diagnosis, or surgical treatment.
endoscopic of or relating to the use of a flexible fiber-optic instrument to examine an inner part of the body.
endoscopy a medical procedure, carried out for the purpose of examination, in which an endoscope, a long, tubular instrument with an attached camera, is inserted into the body, esp. through the throat or bowel.
endoskeleton the internal bony supporting framework characteristic of vertebrates. (Cf. exoskeleton.)
endosperm tissue that is derived from the embryo sac of a plant and that surrounds and nourishes the embryo.
endothelial of or pertaining to a layer of flat cells that lines blood vessels, lymphatic vessels, and some internal body cavities.
endothelium a layer of flat cells that lines blood vessels, lymphatic vessels, and some internal body cavities.