Definition of ESTRUS. : a regularly recurrent state of sexual excitability during which the female of most mammals will accept the male and is capable of conceiving: heat; also: a single occurrence of this state. See estrus defined for kids.
1. (medicine) any of various liquids sold as medicine (as by a travelling medicine show) but medically worthless. 2. communication (written or spoken) intended to deceive. Familiarity information: SNAKE OIL used as a noun is rare. Dictionary entry details.
1 Its bottle was embossed, âKnown as Snake Oil.â In 1929 it was restyled, the same bottle sporting a new paper label reading âMillerâs Anti-Pain Oilâ and adding, âFor Years Called Snake Oil But Does Not Contain Snake Oil.â Other examples of this type include one distributed by âChief White Horseâ of Madison, Wisconsin.here were many other snake hunters. In my collection is a Schoolcraft, Michigan, vendorâs license of May 26, 1881, permitting an otherwise unidentified âSnake Manâ to âsell oilâ for two days.