The entirety of means whereby a specific production is made existent or task accomplished. / A complex machine or instrument. / An assortment of tools and instruments.

(chemistry) a piece of laboratory glassware used to generate demonstration amounts of hydrogen sulfide and other gases, by the controlled reaction of a liquid with a solid

(cytology) A network of membranes in the cytoplasm of those animal cells that produce secretions.

(anatomy, physiology, ophthalmology) The system containing the orbital structures for the production and drainage of tear.

(physiology) A minuscule structure inside the kidney, involved in the regulation of the activity of each nephron.

A device that measures conductivity, temperature, and depth underwater.

A device used in surgical procedures to lengthen or reshape limb bones; to treat complex and/or open bone fractures; and in cases of infected non-unions of bones that are not amenable to other techniques.

The Weberian ossicles taken as a whole; the structure connecting the swim bladder to the auditory system in fishes.

Synonym of critical apparatus

The critical and primary source material that accompanies an edition of a text.