Comparative form of slender: more slender(adjective)
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Use "slenderer" in a sentence
"This bundle or packet is known to everybody as _the intestines_, and it is divided into two portions: the _small intestine_ -- that is, the slenderer, finer portion which begins at the"
"Not sure of the species on this one, either, but it's shorter and slenderer than most of the common cultivars - definitely not Kobold or one of its close relations."
"I was happier with the modest bundle of slenderer fare already in my bookbag."