Dorland's Word of the Day is a great way to broaden your knowledge of medical terminology. With a new and interesting term brought to you from the 32nd edition of Dorland's Illustrated Medical Dictionary each day, it's an easy and fun way to increase your medical vocabulary!

You can view a new word on this website each day.

Today's Word

domiphen bromide
a quaternary ammonium compound effective against a wide range of gram-negative and gram-positive bacteria and against certain fungi; used as a topical anti-infective and to disinfect instruments and utensils.

Word of the Day Archive

a pulmonary disease seen in cotton textile workers and preparers of flax and soft hemp, due to inhalation of textile dust. Two forms are distinguished, acute and chronic b. Called also brown lung, cotton-dust asthma, and stripper?s asthma.

a protein (mol. wt. approximately 40,000) occurring in the flagella of bacteria, which is composed of subunits arranged in several-stranded helix formation somewhat resembling myosin in structure, and sometimes containing ?-N-methyl lysine. Its composition varies with the species; thus flagellin antibodies are species-specific.

bioprosthetic valve
a prosthetic heart valve composed of biological tissue, sterilized and mounted on a plastic or metallic supporting structure; it is inaudible and does not require anticoagulation; a common type is the porcine valve. Called also tissue valve.

Haemophilus b conjugate vaccine
a preparation of Haemophilus influenzae type b capsular polysaccharide covalently bound to diphtheria toxoid or to a specific diphtheria protein, meningococcal protein, or tetanus protein; it stimulates both B and T lymphocyte responses and is much more immunogenic than the polysaccharide vaccine. Administered intramuscularly as a routine immunizing agent in children between the ages of 2 months and 5 years.

terpin hydrate and codeine elixir
a preparation containing, in 100 mL, between 1.53 and 1.87 g of terpin hydrate and between 180 and 220 mg of codeine, prepared by dissolving 2 g codeine in a sufficient quantity of terpin hydrate elixir to make 1000 mL; used as an expectorant and antitussive.

a poisonous extract from belladonna leaves.

a poisonous compound from the flowers and leaves of various shrubs and trees, such as Rhododendron; it is also found in honey from Rhododendron flowers.


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