Pepto-Bismol (or pink bismuth), specifically, is known to turn the tongue and/or stool black temporarily. This condition can persist for a few days... Q.diarrhea for 4 wks. watery and then black stools.
sick day noun [C]. âº a day for which an âemployee âreceives âpay while âabsent from âwork because of âillness. (Definition of sick day from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
Best Answer: D-Day is a term often used in military parlance to denote the day on which a combat attack or operation is to be initiated. D-Day often represents a variable, designating the day upon which some significant event will occur or has occurred; see Military designation of days and hours for similar terms.