无针注射器

jet injector

not to have / no / none / not / to lack / un- / -less

needle / pin / injection / stitch / CL:根[gen1],支[zhi1]

variant of 針|针[zhen1], needle

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)

syringe

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