They are also used to immobilize the ankle and lower leg in the presence of arthritis or fracture, and to correct foot drop; an AFO is also known as a foot-drop brace. Ankle-foot orthoses are the most commonly used orthoses, making up about 26% of all orthoses provided in the United States.
adjective. noun. Fundamental is defined as something that is basic or essential. The most basic underlying truth of a religion is an example of a fundamental truth. The definition of fundamental is a basic truth or law. Freedom is an example of a fundamental of the American ideal.
Hyponyms (each of the following is a kind of gist): bare bones ((plural) the most basic facts or elements). hypostasis ((metaphysics) essential nature or underlying reality). haecceity; quiddity (the essence that makes something the kind of thing it is and makes it different from any other).