Category: D

A bacterium which usually occurs in pairs as a result of incomplete cell division, e.g. a pneumococcus. Spherical or oval-shaped bacterium, occurring in pairs; plural is diplococci. Any of a group of nonmotile parasitic spherical bacteria that occur in pairs. The group includes the pneumococcus. Any of various spherical bacteria appearing in pairs.  

A disorder of the cochlea in which a person hears one sound as two sounds of different pitch. Perception of a single sound as double owing to a defect of the cochlea in the inner ear. A disturbed perception of pitch in which two tones are heard for every sound produced.  

Referring to a bacterium similar to the diphtheria bacterium. Resembling diphtheria (especially the membrane formed in diphtheria) or the bacteria that cause it. Resembling diphtheria or the bacteria that cause diphtheria.  

A drug related to pethidine that is used to treat diarrhoea, sometimes mixed with a little atropine in commercial preparations.  

A unit of measurement of the refraction of a lens. A term used in the measurement of the refractive or focusing power of lenses; one dioptre is the power of a lens with a focal distance of one metre and is the unit of refractive power. As a stronger lens has a greater refractive power,…

A condition in which a woman has a double uterus.  

An antihistamine drug that relieves travel sickness. An antihistamine drug used to treat motion sickness. Dimenhydrinate (Dimetabs, Marmine) prevents nausea, vomiting, and vertigo (dizziness) associated with motion sickness. It is available without a prescription in capsules, tablets, and liquid form and by prescription as an injection. An antihistamine used to prevent and treat motion sickness,…

The action of diluting. A liquid which has been diluted. The process of attenuating or weakening a substance.  

With water added. A solution characterized by a higher proportion of fluid in comparison to the amount of solute it contains.  

A substance which is used to dilute a liquid, e.g. water. An agent that reduces the potency or concentration of the substance or solution to which it is added.