Agent noun of fix; one who, or that which, fixes. / (photography) A chemical (sodium thiosulfate) used in photographic development that fixes the image in place, preventing further chemical reactions.

(biochemistry) a plant or other organism which accomplishes nitrogen fixation

In a fixed manner: steadily, without shifting one's gaze. / In a fixed manner: unchangingly, without changing one's expression. / Firmly, resolutely.

(computing) A piece of computer hardware that deinterlaces an output video signal, resulting in a less flickery display on some systems.