1. The release or introduction of a product, service, or project that contains flaws, errors, or does not meet quality standards
The software's defective launch caused widespread frustration among users.
O lançamento defeituoso do software causou frustração generalizada entre os usuários.
2. A failed or problematic spacecraft, rocket, or missile launch due to technical malfunctions
The rocket experienced a defective launch due to engine malfunction.
O foguete sofreu um lançamento defeituoso devido a uma falha no motor.