Rocketry
['rɒkɪtrɪ] or ['rɑkɪtri]
Definition
(noun.) the branch of engineering science that studies rocket design and operation.
Editor: Moll--From WordNet
['rɒkɪtrɪ] or ['rɑkɪtri]
(noun.) the branch of engineering science that studies rocket design and operation.
Editor: Moll--From WordNet