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.
Answers. Relevance. Rating Newest Oldest. Best Answer: An internal stimulus is something from within that gets you do 'do' something. An example of this would be you feel a hunger pain, so you go get some food. An external stimulus is something from outside (the environment) that gets you to 'do' something.And example of this would be you see a commercial about food, so you go get some food. Source(s): reesome Â· 8 years ago.n external stimulus is something from outside (the environment) that gets you to 'do' something. And example of this would be you see a commercial about food, so you go get some food. Source(s): reesome Â· 8 years ago.