- Discoid or coin-shaped; denoting the thick mucous or mucopurulent sputum in certain respiratory diseases, so called because of the disc shape assumed when it is flattened on the bottom of a sputum mug containing water or transparent disinfectantor shape of lesions in nummular eczera.
- Arranged like stacks of coins, denoting the lining up of the red blood cells into rouleaux formation.
[ L. nummulus, small coin, dim. of nummus, coin]
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