English dictionary of medical terms (63)

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[Multilingual]No:1240 - overdosage
1. the administration of an excessive dose. 2. the condition resulting from an excessive dose.
[Multilingual]No:1241 - overdose
1. to administer an excessive dose. 2. an excessive dose.
[Multilingual]No:1242 - ovulation
the discharge of a secondary oocyte from a vesicular follicle of the ovary.
[Multilingual]No:1243 - ovum
1. the female reproductive cell which, after fertilization, develops into a new member of the same species (von Baer, 1827); an egg. 2. the human ovum : a round cell about 0.1 mm. in diameter, produced in the ovary, where there is deposited around it a noncellular covering (oolemma; zona pellucida; zona radiata). It consists of protoplasm which contains some yolk, enclosed by a thin cell wall (vitelline membrane). There is a large nucleus (germinal vesicle), within which is a nucleolus (germinal spot). By extension, the word is also used to designate any early stage of the conceptus, when the embryo itself constitutes a tiny and insignificant part of the whole.
[Multilingual]No:1244 - oxidation
the act of oxidizing or state of being oxidized. Chemically it consists in the increase of positive charges on an atom or the loss of negative charges. Most biological oxidations are accomplished by the removal of a pair of hydrogen atoms (dehydrogenation) from a molecule. Such oxidations must be accompanied by reduction of an acceptor molecule. Univalent o. indicates loss of one electron; divalent o., the loss of two electrons.
[Multilingual]No:1245 - oxygenation
the process of supplying, treating, or mixing with oxygen. No:1245 - oxygenation the process of supplying, treating, or mixing with oxygen.
[Multilingual]No:1246 - oxytocic
1. pertaining to, characterized by, or promoting oxytocia (= rapid labour). 2. an agent that hastens evacuation of the uterus by stimulating contractions of the myometrium.
[Multilingual]No:1247 - pacemaker
an object or substance that influences the rate at which a certain phenomenon occurs; often used alone to indicate the natural cardiac pacemaker or an artificial cardiac pacemaker. In biochemistry, a substance whose rate of reaction sets the pace for a series of interrelated reactions.
[Multilingual]No:1248 - paediatric
of or relating to the care and medical treatment of children; belonging to or concerned with paediatrics.
[Multilingual]No:1249 - palliative
(L. palliatus cloaked) 1. affording relief, but not cure. 2. an alleviating medicine.
[Multilingual]No:1250 - palpebra
eyelid; either of the two movable folds that protect the anterior surface of the eyeball.
[Multilingual]No:1251 - palpitation
(L. palpitatio) a subjective sensation of an unduly rapid or irregular heart beat.
[Multilingual]No:1252 - pancreatitis
acute or chronic inflammation of the pancreas, which may be asymptomatic or symptomatic, and which is due to autodigestion of a pancreatic tissue by its own enzymes. It is caused most often by alcoholism or biliary tract disease; less commonly it may be associated with hyperlipaemia, hyperparathyroidism, abdominal trauma (accidental or operative injury), vasculitis, or uraemia.
[Multilingual]No:1253 - pancytopenia
(pan- + cyto- + -penia) deficiency of all cell elements of the blood; aplastic anaemia.
[Multilingual]No:1254 - panniculitis
(panniculus + -itis) an inflammatory reaction of the subcutaneous fat, which may involve the connective tissue septa between the fat lobes, the septa lobules and vessels, or the fat lobules, characterized by the development of single or multiple cutaneous nodules.
[Multilingual]No:1255 - papillary
pertaining to or resembling papilla, or nipple.
[Multilingual]No:1256 - papillitis
(papilla + -itis)- inflammation of the optic papilla (disk).
[Multilingual]No:1257 - papilloedema
choked disk, edema of the optic disk (papilla), most commonly due to increased intracranial pressure, malignant hypertension, or thrombosis of the central retinal vein : called also choke disk.
[Multilingual]No:1258 - papule
(L. papula) a small circumscribed, superficial, solid elevation of the skin.
[Multilingual]No:1259 - paracentesis
(para- + Gr. kentsis puncture) surgical puncture of the abdominal cavity for the aspiration of peritoneal fluid.
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