thirdstage
nounUK /ˌθɜːd ˈsteɪdʒ/
US /ˌθɝːd ˈsteɪdʒ/
The third part of something that happens in steps.
The rocket's third stage carried the satellite into space.
OTHER MEANINGS
2. The final part of a rocket that pushes a spacecraft into its last path.
Engineers checked the third stage before launch.
3. The last level of a competition or process.
She reached the third stage of the spelling bee.
4. The later part of a disease or treatment plan.
The doctor explained what happens in the third stage of recovery.