(chemistry, dated) The proportional weight, usually referred to hydrogen as a standard, and for each element a fixed multiple of the atomic weight, by which an element unites with another to form a distinct compound.

plural of combine harvester

(US) A railroad car containing two or more compartments used for different purposes.

plural of combination lock

(military) The amalgamation and implementation of the armed forces for joint operations.

(US, law) The combination, in a patent claim, of a novel device with conventional elements in a conventional manner.

plural of combining weight

plural of combinational circuit

plural of combination car

(music) The psychoacoustic phenomenon of an additional tone or tones being perceived when two real tones are sounded at the same time.