伽马辐射

gamma radiation

traditionally used as phonetic for ga / also pr. [ga1] / also pr. [qie2]

gamma (Greek letter Γγ) (loanword)

surname Ma / abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]

horse / CL:匹[pi3] / horse or cavalry piece in Chinese chess / knight in Western chess

spoke of a wheel

radiation

old variant of 射[she4]

to shoot / to launch / to allude to / radio- (chemistry)