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.
The snake is a legendary totem symbolizing transformation of energy from lower vibrations to higher aspects of mind, body and spirit. Snake sheds it's skin in a ritual representing rebirth and new beginnings. With an ability to leave the old skin behind, Snake represents a fascinating metamorphosis. Snake Meaning.