Category: M

A fertilized egg in which a high degree of development has already occurred at the time of fertilization.  

A round mass of cells that develops from the original fertilized egg within a few days after fertilization. An early stage in the development of an embryo, where the cleayage of the ovum creates a mass of cells. Stage in human embryonic development between the zygote and the blastocyst, consisting of a solid spherical mass…

The number of deaths per year, shown per hundred thousand of population. Death rate; number of deaths per unit of population (e.g., per 100,10,000, or 1,000,000) in a specific region, age group, or other group. A statistic that measures the frequency at which death occurs in a population within a given time. The mortality rate…

Those rules of grammar that deal with the combination of morphemes into words.  

An outdated term used to describe dependency on the use of morphine. Morbid condition due to habitual or excessive use of morphine.  

Crystallized from opium. A narcotic painkiller. Morphine sulfate is used to relieve severe pain. Morphine is often used to relieve the pain of cancer and the pain associated with surgery. Morphine is the drug of choice to relieve pain of myocardial infarction (heart attack). Morphine is thought to work in the central nervous system to…

A dependency on morphine. Psychological and physiological dependency with the withdrawal syndrome upon denial of the drug.  

The smallest significant unit of meaning in a language. The smallest meaningful grammatical unit in a language (e.g., the s in “beds”).  

A form of mental retardation in which the person has an intelligence quotient of 50-70. It is a term that is considered obsolete, idiot; imbecile. Obsolete term for a retarded person with an IQ between 50 and 70.  

A condition consisting of a group of symptoms including feelings of nauseousness and vomiting shortly after awakening in the morning and associated with early pregnancy. Nausea and vomiting experienced by women in the early stages of pregnancy when they get up in the morning. Nausea and vomiting that often accompany the early months of pregnancy.…