Strong's Definition
or (shortened) charul {khaw-rool'}; apparently, a passive participle of an unused root probably meaning to be prickly; properly, pointed, i.e. a bramble or other thorny weed: nettle.
STEPBible — Tyndale Abridged Hebrew Lexicon
חָרוּל (cha.rul) — nettle. nettles, weeds, kind of weed (perhaps chickpea)
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
חָרוּל n.[m.] a kind of weed, perh. chickpea base