a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena (noun.cognition)
a structure supporting or containing something(noun.artifact)
a theoretical sun that moves along the celestial equator at a constant speed and completes its annual course in the same amount of time the real sun t more..a theoretical sun that moves along the celestial equator at a constant speed and completes its annual course in the same amount of time the real sun takes at variable speeds(noun.cognition)
(particle physics) a theory that involves an eleven-dimensional universe in which the weak and strong forces and gravity are unified and to which all more..(particle physics) a theory that involves an eleven-dimensional universe in which the weak and strong forces and gravity are unified and to which all the string theories belong(noun.cognition)
a framework of steel bars raised on side supports to bridge over or around something; can display railway signals above several tracks or can support more..a framework of steel bars raised on side supports to bridge over or around something; can display railway signals above several tracks or can support a traveling crane etc.(noun.artifact)
a wooden framework bent in the shape of a U; its upper ends are attached to the horizontal yoke and the loop goes around the neck of an ox (noun.artifact)
a light enclosing framework (trade name Zimmer) with rubber castors or wheels and handles; helps invalids or the handicapped or the aged to walk (noun.artifact)