| DED | date of expected delivery; defined exposure dose; delayed erythema dose |
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| DENT | Dental Exposure Normalization Technique |
| EF | ectopic focus; edema factor; ejection fraction; elastic fibril; electric field; elongation factor; e... |
| ERHD | exposure-related hypothermic death |
| ex | exacerbation; examination, examined, examiner; example; excision; exercise; exophthalmos; exposure; ... |
| maternal age 35 and over | Pregnancy in women 35 or more years of age. It is used for normal pregnancies and for problems of pregnancy occurring in a woman's late reproductive years. These include effects on the mother's physical and mental health as well as risks of perinatal mortality and foetal abnormality. (12 Dec 1998) |
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| maternal antibody | Any antibody transferred from a mammalian mother transplacentally into the foetus. See under immunoglobulin for details of the classes of Ig that are transferred to the foetus. (18 Nov 1997) |
| maternal behaviour | The behaviour patterns associated with or characteristic of a mother. (12 Dec 1998) |
| maternal-child health centres | Facilities which administer the delivery of health care services to mothers and children. (12 Dec 1998) |
| maternal-child nursing | The nursing specialty that deals with the care of women throughout their pregnancy and childbirth and the care of their newborn children. (12 Dec 1998) |
| maternal cotyledon | A unit of the placenta made up of trophoblastic cells, fibrous tissue, and abundant blood vessels, which is visible grossly on the maternal surface as an irregularly shaped lobe circumscribed by a deep cleft and made up of a stem villus with numerous branching free villi and anchoring villi; placental vessels in the chorionic plate supply the stem villus and its branches, allowing gas and metabolite exchange across the trophoblastic layer with maternal blood in the intervillous space; traditionally called clinicians' cotyledon. (05 Mar 2000) |
| maternal death | Death of a woman while pregnant or within 42 days after the termination of gestation, irrespective of the duration and site of pregnancy and the cause of death; two periods are recognised in the 42-day interval: period 1 includes day 1 to day 7; period 2 includes day 8 to day 42. Maternal death's are further classified as: (05 Mar 2000) |
| maternal death rate | The number of maternal deaths that occur as the direct result of the reproductive process per 100,000 live births. See: rate. See: maternal death. (05 Mar 2000) |
| maternal deprivation | Prolonged separation of the offspring from the mother. (12 Dec 1998) |
| maternal deprivation syndrome | <syndrome> A failure to thrive seen in infants and young children and exhibited as a constellation of physical signs, symptoms, and behaviours, usually associated with maternal loss, absence or neglect, and characterised by lack of responsiveness to the environment and often depression. (05 Mar 2000) |
| maternal dystocia | Dystocia caused by an abnormality or physical problem in the mother. (05 Mar 2000) |
| maternal effect gene | Gene, usually required for early embryonic development, whose product is secreted into the egg by the mother. The phenotype is thus determined by the mother's, rather than the egg's, genotype. Compare:. Zygotic effect gene. See: egg polarity gene. (18 Nov 1997) |
| maternal-foetal exchange | Exchange of substances between the maternal blood and the foetal blood through the placental barrier. It excludes microbial or viral transmission. (12 Dec 1998) |
| maternal health services | Organised services to provide health care to expectant and nursing mothers. (12 Dec 1998) |
| maternal immunity | <epidemiology> Immunity for a neonate provided by IgG antibody generated by a mother and passed across the placenta to the unborn offspring. This provides short lived protection (with a typical half life of 3-6 months) to the neonate. Also known as immunity. (05 Dec 1998) |