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).
A calendar day is a 24 hour period between two consecutive midnights. During a day, we experience both day time as well as night time. Day time, which is literally referred to as day, is the part of the day when the Sun is up in the sky. In other words, a day starts with the sun rise and ends with the sun set.