Definition of rosulate in US English:

rosulate

adjective

Botany
  • Of parts of a plant (especially leaves): forming a rosette; arranged like the petals of a rose. Also (of a plant): having leaves arranged in this pattern.

Origin

Early 19th century. From post-classical Latin rosula little rose + -ate.

Pronunciation

rosulate

/ˈrɒzjʊlət/