us â uk â /ËsÉªl.É.blÌ©/. B2 a single unit of speech, either a whole word or one of the parts into which a word can be separated, usually containing a vowel. More examples. In the word 'engine', you should stress the first syllable.
Freebase(0.00 / 0 votes)Rate this definition: A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes.
The upright shrub can grow to 25 feet tall in USDA zones 3 though 8, and blooms on new wood. The showy terminal panicles are up to 8 inches long and blush pink or pale purple as they age. Although panicle is one of the latest hydrangeas to bloom, the flower clusters keep on coming into September.