(obsolete, anatomy) The wrist. / (palmistry) The lines or wrinkles running across the wrist at the base of the palm.

(broadcasting) The transmission of radio or television channels from the broadcaster into the networks that deliver them to the audience.

(organic chemistry) Any salt or ester of an octadecatetraenoic acid

A hydrometer, especially one that is used to measure the strength of an acid. / Any of various other devices used to measure acidity, either chemical or electronic.