| amenorrhoea | (noun) absence or suppression of normal menstrual flow | Synonyms: amenia, amenorrhea |
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| diarrhoea | (noun) frequent and watery bowel movements; can be a symptom of infection or food poisoning or colitis or a gastrointestinal tumor | Synonyms: diarrhea, looseness, looseness of the bowels |
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| gonorrhoea | (noun) a common venereal disease caused by the bacterium Neisseria gonorrhoeae; symptoms are painful urination and pain around the urethra | Synonyms: clap, gonorrhea |
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| pyorrhoea | (noun) discharge of pus | Synonyms: pyorrhea |
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| (noun) chronic periodontitis; purulent inflammation of the teeth sockets | Synonyms: pyorrhea, pyorrhea alveolaris, Riggs' disease |