(ˈ)ȯ(r)|kestrəl sometimes ˈ ̷ ̷_kə̇s- adjective
Etymology: orchestra + -al
1.
a. : of, relating to, or designed for an orchestra
seek new orchestral works in Paris — Current Biography
orchestral concerts
orchestral programs
b. : imitating a specified orchestral instrument — used in the names of organ stops
orchestral oboe
2. : suggestive of an orchestra or its characteristic musical qualities or effects
a poem of orchestral sweep and grandeur
• or·ches·tral·ly -trəlē, -li adverb