01 A tropical tree (Hernandia sonora), which bears a drupe that rattles when dry in the inflated calyx.
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1.
A tropical tree (Hernandia sonora), which bears a drupe that rattles when dry in the inflated calyx.(Bot.)
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2.
A child's toy, consisting of a box, out of which, when the lid is raised, a figure (usually a clown) springs; also called jack-in-the-box. Also: jack-in-the-box
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3.
An epicyclic train of bevel gears for transmitting rotary motion to two parts in such a manner that their relative rotation may be variable; applied to driving the wheels of tricycles, road locomotives, and to cotton machinery, etc.; an equation box; a jack frame; -- called also compensating gearing.(Mech.) Also: compensating gearing
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4.
A large wooden screw turning in a nut attached to the crosspiece of a rude press.