Term: orthopter: heavier-than-air craft that is propelled by the flapping of wings
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: vietnamese: a native or inhabitant of Vietnam
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: tantalum: a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: thrush: a woman who sings popular songs
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: rest: a support on which things can be put
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: triangulation: a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: cream: toiletry consisting of any of various substances in the form of a thick liquid that have a soothing and moisturizing effect when applied to the skin
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: old high german: High German prior to 1200
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: medical expense: amount spent for diagnosis or treatment or prevention of medical problems
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: life: the course of existence of an individual; the actions and events that occur in living
Broader: heavier-than-air craft: a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it | Unrelated: ram's-head: orchid of northern North America having a brownish-green flower and red-and-white lip suggestive of a ram's head