注射器

syringe

to inject / to pour into / to concentrate / to pay attention / stake (gambling) / classifier for sums of money / variant of 註|注[zhu4]

to register / to annotate / note / comment

injection / to inject

old variant of 射[she4]

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

device / tool / utensil / CL:臺|台[tai2]

jet injector