transcription, транскрипция: [ rɪfaɪn ]
( refines, refining, refined)
1.
When a substance is refined , it is made pure by having all other substances removed from it.
Oil is refined to remove naturally occurring impurities.
VERB : usu passive , be V-ed
• re‧fin‧ing
...oil refining.
N-UNCOUNT
2.
If something such as a process, theory, or machine is refined , it is improved by having small changes made to it.
Surgical techniques are constantly being refined.
= improve
VERB : usu passive , be V-ed