| rosette [rō`zet] BIOLOGY Any structure or marking resembling a rose. METALLURGY 1. Rounded constituents in a microstructure arranged in whorls. 2. Strain gages arranged to indicate at a single position the strains in three different directions. MINERALOGY Rose-shaped, crystalline aggregates of barite, marcasite, or pyrite formed in sedimentary rock. PLANT PATHOLOGY Any of various plant diseases in which the leaves become clustered in the form of a rosette. |