Term: absolute ceiling: the maximum altitude at which an airplane can maintain horizontal flight
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: biological clock: an innate mechanism in living organisms that controls the periodicity of many physiological functions
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: white croaker: small silvery marine food fish found off California
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: sentimentalization: the act of indulging in sentiment
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: dream: a series of mental images and emotions occurring during sleep
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: fossil: the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: circle: something approximating the shape of a circle
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: flatbread: any of various breads made from usually unleavened dough
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: weather map: (meteorology) a map showing the principal meteorological elements at a given time and over an extended region
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: velvet grass: tall European perennial grass having a velvety stem; naturalized in United States and used for forage
Broader: ceiling: maximum altitude at which a plane can fly (under specified conditions) | Unrelated: retinoblastoma: malignant ocular tumor of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells