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.
This realization is triggered by either an internal or an external stimulus. An internal stimulus is related to something the buyer feels, such as hunger or thirst. An external stimulus comes from outside the buyer, including advertising, recommendations, and store displays.n internal stimulus is based upon something that you feel, such as hunger, thirst, love, or pain. It comes from within a person. In contrast, an external stimulus comes from outside a person.