I think this means a full set of something due to the prefix of "pan" meaning all.
Actual Definition:
noun: panoply; plural noun: panoplies
1. a complete or impressive collection of things.
"a deliciously inventive panoply of insults"
synonyms: array, range, collection
"the full panoply of U.S. military might"
2. a splendid display.
"all the panoply of Western religious liturgy"
synonyms: trappings, regalia; More
historical literary
3. a complete set of arms or suit of armor.
Actual Definition:
noun: panoply; plural noun: panoplies
1. a complete or impressive collection of things.
"a deliciously inventive panoply of insults"
synonyms: array, range, collection
"the full panoply of U.S. military might"
2. a splendid display.
"all the panoply of Western religious liturgy"
synonyms: trappings, regalia; More
historical literary
3. a complete set of arms or suit of armor.