A component used to connect two pipes of different bores.
A reducing agent.
A liquid used in the process of developing a negative to reduce its darkness.
A function that takes state and action as arguments and returns the next state of the app.
A hydraulic device for reducing pressure and hence increasing movement, used to transmit the load from the hydraulic support of the lower shackle to the lever weighing apparatus in some kinds of heavy testing machine.
Something that reduces.
A socket in machinery shaped like a thimble.
As much as fills a thimble (sense 1); a thimbleful.
A metal ring which a cable or rope intended for attaching to other things is looped around as a protection against chafing.
A pitted, now usually metal, cup-shaped cap worn on the tip of a finger, which is used in sewing to push the needle through material.
A thimble or similar object used in thimblerig (“a game of skill which requires the bettor to guess under which of three thimbles or small cups a pea-sized object has been placed after the person operating the game rapidly rearranges them”).
A ring- or tube-shaped component such as a ferrule.
To sew.
To use a thimble (noun sense 1).