English dictionary of medical terms (53)

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[Multilingual]No:1040 - median
(L. medianus) any value that divides the probability of a random variable in half, i.e. the probability of observing a value above the median and the probability of observing a value below the median are both less than or equal to one half. For a finite population or sample, the median is the middle value of an odd number of values (arranged in ascending order) or any value between the two middle values of an even number of values; in the latter case it is conventional to use the average of the two middle values.
[Multilingual]No:1041 - mediate
indirect; accomplished by the aid of an intervening medium.
[Multilingual]No:1042 - mediator
an object or substance by which something is mediated, such as (1) a structure of the nervous system that transmits impulses eliciting a specific response; (2) a chemical substance (transmitter substance) that induces activity in an excitable tissue, such as nerve or muscle; or (3) a substance released from cells as the result of the interaction of antigen with antibody or by the action of antigen with a sensitized lymphocyte.
[Multilingual]No:1043 - medical
pertaining to medicine or to the treatment of diseases; pertaining to medicine as opposed to surgery.
[Multilingual]No:1044 - medicament
(L. medicamentum) a medicinal substance or agent.
[Multilingual]No:1045 - medication
(L. medicatio) impregnation with a medicine. 2. the ad-ministration of remedies. 3. a medicament.
[Multilingual]No:1046 - medicinal
(L. medicinalis) 1. having healing qualities. 2. pertaining to a medicine or to healing.
[Multilingual]No:1047 - medullary
(L. medullaris) pertaining to the marrow or to any medulla; resembling marrow.
[Multilingual]No:1048 - megacolon
an abnormally large or dilated colon; the condition may be congenital or acquired, acute or chronic.
[Multilingual]No:1049 - megaloblastic
a large abnormal red blood cell appearing in the blood in pernicious anaemia.
[Multilingual]No:1050 - melena
(Gr. melaina, feminine of Gr. melas black) 1. the passage of dark, pitchy, and grumous stools stained with blood pigments or with altered blood. 2. black vomit.
[Multilingual]No:1051 - melanoma
(melano- + -oma) a tumour arising from the melanocytic system of the skin and other organs. When used alone the term refers to malignant melanoma.
[Multilingual]No:1052 - melanosis
(melano- + -osis) a disorder caused by a disturbance in melanin pigmentation; melanism.
[Multilingual]No:1053 - membrane
a thin layer of tissue which covers a surface, lines a cavity or divides a space or organ.
[Multilingual]No:1054 - menarche
(Gr. mn month + arch beginning) the establishment or beginning of the menstrual function.
[Multilingual]No:1055 - meningitis
(Gr. mninx membrane + -itis) inflammation of the meninges. When it affects the dura mater, the disease is termed pachymeningitis; when the arachnoid and pia mater are involved, it is called leptomeningitis, or meningitis proper.
[Multilingual]No:1056 - menopause
(meno- + Gr. pausis cessation) cessation of menstruation in the human female, occurring usually around the age of 50.
[Multilingual]No:1057 - menorrhagia
(meno- + Gr. rhgnynai to burst forth) excessive uterine bleeding occurring at the regular intervals of menstruation, the period of flow being of greater than usual duration.
[Multilingual]No:1058 - menstruation
the cyclic, physiologic discharge through the vagina of blood and mucosal tissues from the nonpregnant uterus; it is under hormonal control and normally recurs, usually at approximately four-week intervals, in the absence of pregnancy during the reproductive period (puberty through menopause) of the female of the human and a few species of primates. It is the culmination of the menstrual cycle.
[Multilingual]No:1059 - mental
(L. mens mind) pertaining to the mind; psychic. 2. (L. mentum chin) pertaining to the chin.
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