Term: ion engine: a type of reaction-propulsion engine to propel rockets in space; a stream of positive ions is accelerated to a high velocity by an electric field
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: left: location near or direction toward the left side; i.e. the side to the north when a person or object faces east
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: pyrausta: moths whose larvae are corn borers
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: riddle: a difficult problem
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: aggravation: unfriendly behavior that causes anger or resentment
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: coefficient of friction: the ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: heavy spar: a white or colorless mineral (BaSO4); the main source of barium
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: skylight: a window in a roof to admit daylight
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: encumbrance: a charge against property (as a lien or mortgage)
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: jocosity: fun characterized by humor
Broader: reaction-propulsion engine: a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream | Unrelated: potato fern: small epiphytic fern of South America with tuberous swellings along rhizomes