(virology) Initialism of simian immunodeficiency virus. / (virology) Initialism of swine influenza virus, usually Influenza A virus. / (countable) Initialism of special immigrant visa.

(chemistry) Derived from a plant of the family Aristolochiaceae. / (pathology) Caused by aristolochic acid.

plural of merrymaker

(measuring instrument) A device consisting principally of an alcohol thermometer, used to measure air cooling power and, indirectly, small wind speeds in circulating air, by measuring the time take...