inject + -ion

source: [プリズマ☆イリヤの面子に注射を刺すGIF画像｜無料GIF画像検索 GIFMAGAZINE 682839]

1. an instance of injecting or being injected:

〖具体例ではan (...) ～/～s〗 注射(shot1)

e.g. painkilling injections

(資金の)投入

e.g. an injection of capital was needed.

a thing that is injected:

e.g. a morphine injection.

the action of injecting:

e.g. sometimes a polio vaccine is given by injection.

short for fuel injection.

(燃料などの)噴射, 注入

2. the entry or placing of a spacecraft or other object into an orbit or trajectory.

(宇宙船を)軌道にのせること

late Middle English: from Latin injectio(n-), from the verb inicere (see inject).