panicle vs raceme

panicle and raceme both are nouns.

Word	Noun	Adjective	Verb	Adverb
panicle	Yes	No	No	No
raceme	Yes	No	No	No

As nouns, raceme is a hypernym of panicle; that is, raceme is a word with a broader meaning than panicle:

panicle: compound raceme or branched cluster of flowers
raceme: usually elongate cluster of flowers along the main stem in which the flowers at the base open first

panicle (noun)	raceme (noun)
compound raceme or branched cluster of flowers	usually elongate cluster of flowers along the main stem in which the flowers at the base open first