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.
Then I am paying homage to the old huckster purveyors of âsnake oilâ also known as patent medicines. While snake oil came to refer to any patent medicine (most of which were just distilled liquor disguised as medicine), it appears that some of the patent medicine salesmen did import real snake oil from China, e.g., the rendered fat of snakes.