Term: gearbox: the shell (metal casing) in which a train of gears is sealed
Broader: shell: the housing or outer covering of something | Unrelated: eastern hemlock: common forest tree of the eastern United States and Canada; used especially for pulpwood
Broader: shell: the housing or outer covering of something | Unrelated: oxeye: an oval or round dormer window
Broader: shell: the housing or outer covering of something | Unrelated: lattice: an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions
Broader: shell: the housing or outer covering of something | Unrelated: scholiast: a scholar who writes explanatory notes on an author (especially an ancient commentator on a classical author)
Broader: shell: the housing or outer covering of something | Unrelated: inherence: the state of inhering; the state of being a fixed characteristic
Broader: shell: the housing or outer covering of something | Unrelated: sampling: (statistics) the selection of a suitable sample for study
Broader: shell: the housing or outer covering of something | Unrelated: appearance: the event of coming into sight
Broader: shell: the housing or outer covering of something | Unrelated: action officer: the case officer designated to perform an act during a clandestine operation (especially in a hostile area)
Broader: shell: the housing or outer covering of something | Unrelated: hog peanut: vine widely distributed in eastern North America producing racemes of purple to maroon flowers and abundant (usually subterranean) edible one-seeded pods resembling peanuts
Broader: shell: the housing or outer covering of something | Unrelated: troponymy: the place names of a region or a language considered collectively