/hem'ee oh"leuh/ , n. Music.
a rhythmic pattern of syncopated beats with two beats in the time of three or three beats in the time of two.
[ 1590-1600; hemiolia hemiolía the ratio of one and a half to one, fem. of hemiolíos half as large again, equiv. to hemi- HEMI- + ( h ) ól ( os ) whole + -ios adj. suffix ]