noun 다운로드 🔗공유 펜틸기 Any of several isomeric univalent hydrocarbon radicals, C5H11, formally derived from pentane by the loss of a hydrogen atom. Examples : "The chemical formula for the pentyl group attached to that molecule is C5H11. " 해당 분자에 부착된 펜틸기의 화학식은 C5H11입니다. compound chemistry substance technical AI와 채팅어휘 게임독해 연습