n.
Pronunciation: ˌ är- ē - ' ō -( ˌ )s ō , -( ˌ )z ō
Function: noun
Inflected Form: plural -sos also -si \ -( ˌ )s ē , -( ˌ )z ē \
Etymology: Italian, from aria
Date: circa 1724
: a musical passage or composition having a mixture of free recitative and metrical song