# killed

Pronunciation: say "KILD" /kɪld/

## Verb

1. Simple past and past participle of kill. — simple past and past participle of kill
   - Simple: Simple past and past participle of kill. Use this form for something that already happened.
   - _The disease killed thousands before a vaccine was finally found._
   - _Many soldiers were killed in the final hours of the battle._

## Adjective

2. Inactivated so that it can no longer reproduce or cause infection, as a microorganism used in certain vaccines.
   - Simple: Treated so the germs can no longer cause disease but can still teach the body to fight them.
   - _A killed preparation cannot establish infection even in vulnerable patients._
   - _Clinicians favored the killed formulation for the immunization campaign._
3. Having had its dissolved oxygen removed, as steel deoxidized before it is cast.
   - Simple: Made with the oxygen taken out, so the metal sets evenly as it cools.
   - _Killed steel produces sound castings because no gas bubbles form as it solidifies._
   - _Engineers specified a killed grade to avoid blowholes in the forging._

Source: DictionaryAI, https://dictionaryai.com/define/killed (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).