1853 25 528 A hot saturated solution of boracic acid produces an onion-red color, when a little tincture of litmus is poured into it.
2000 (Nexis) 7 Apr. (What's Happening section) 4 Medallions of salmon play their oily succulence against lush, earthy lentils in an intriguing dinner entree splashed by an onion-red currant vinaigrette.