'blastoff' definitions:
Definition of 'blastoff'
From: WordNet
noun
The launching of a missile or spacecraft to a specified destination [syn: blastoff, shot]
Definition of 'blastoff'
From: GCIDE
- blastoff \blast"off`\ n. the launching of a rocket, especially of a spacecraft, under its own power.
- Syn: rocket firing, rocket launching, shoot. [WordNet 1.5]