還原
huán​yuán HSK7

reduction

还原 還原 huán​yuán
reduction verb
(chemistry) A process in which a substance gains electrons or loses oxygen atoms.
to restore
To return to an original state, condition, or position; to reconstruct an event.
inverse operation
(mathematics) To perform a calculation in reverse to return to the original value or verify a result.
recursive
(linguistics, computing) Pertaining to or involving recursion; returning to a previous state in a hierarchical structure.

Frequency
Movie subtitles
2.41 per million appears in 1% of films
Written text
11.3 per million

Details
HSK 2.0
Level 6
HSK 3.0
Level 7

Cross-References

Antonym

Sources
Frequency data
SUBTLEX-CHBCC Corpus (BLCU)