any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
any of three water-soluble, crystalline isomers of such a derivative, having the formula C 6 H 5 NO 3 , occurring in yellow (ortho-nitrophenol) pale-yellow (meta-nitrophenol) and yellowish (para-nitrophenol) solids, used chiefly as intermediates in organic synthesis and as indicators.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a chattering or flighty, light-headed person.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.