1 A badge or insignia consisting of stripes meeting at an angle, worn on the sleeve of a military or police uniform to indicate rank, merit, or length of service. 2  n. Heraldry A device shaped like an inverted V.  n.
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity.When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction.ne internal stimulus that causes hormone release is blood pressure. Hypotension, or low blood pressure, is a large driving force for the release of vasopressin, a hormone which causes the retention of water in the kidneys.
Rating Newest Oldest. Best Answer: A stimulus is a change in internal or external environment of the body, detected by sense organs. They can be mechanical(touch, pain, pressure etc), thermal, chemical(odorants, food etc). Certain chemical like odorants can cause change in the receptor cells i.e. chemoreceptors. Examples are: