rosette

(noun) an ornament or pattern resembling a rose that is worn as a badge of office or as recognition of having won an honor.

(noun) rhizoctinia disease of potatoes. Synonyms: little potato, russet scab, stem canker.

(noun) a cluster of leaves growing in crowded circles from a common center or crown (usually at or close to the ground).

(noun) circular window filled with tracery. Synonyms: rose window.