dimmer

n (also `dimmer switch) device with which one can vary the brightness of an electric light 调光器; 变光器.

dilute, diluted, dilution, dim, dim-wit, dim-witted, dime, dimension, dimensional, dimensions, diminish, diminished, diminished responsibility, diminishing, diminuendo, diminution, diminutive, dimity, dimly, dimly-lit, dimness, dimple, din, dine, diner, dinette, ding-dong, dinghy, dingily, dinginess, dingle, dingo, dingus, dingy, dining, dining room, dining-car, dining-room, dining-table, dinky,