Term: airfoil: a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
Broader: device: an instrumentality invented for a particular purpose | Unrelated: alchemy: a pseudoscientific forerunner of chemistry in medieval times
Broader: device: an instrumentality invented for a particular purpose | Unrelated: rubber eraser: an eraser made of rubber (or of a synthetic material with properties similar to rubber); commonly mounted at one end of a pencil
Broader: device: an instrumentality invented for a particular purpose | Unrelated: hoary pea: a plant of the genus Tephrosia having pinnate leaves and white or purplish flowers and flat hairy pods
Broader: device: an instrumentality invented for a particular purpose | Unrelated: petal: part of the perianth that is usually brightly colored
Broader: device: an instrumentality invented for a particular purpose | Unrelated: ciliata: class of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle
Broader: device: an instrumentality invented for a particular purpose | Unrelated: adaptation: the process of adapting to something (such as environmental conditions)
Broader: device: an instrumentality invented for a particular purpose | Unrelated: spike heel: a very high narrow heel on women's shoes
Broader: device: an instrumentality invented for a particular purpose | Unrelated: milliradian: a unit of angular distance equal to one thousandth of a radian
Broader: device: an instrumentality invented for a particular purpose | Unrelated: picturing: visual imagery
Broader: device: an instrumentality invented for a particular purpose | Unrelated: rest mass: (physics) the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body