Breakdown
Dismantling, Disassembling, Decomposition
noun, verbal noun, の adjective
When you divide and untie things, you're unraveling the connections between them. In other words, you're doing a breakdown or dismantling of something.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
アルコールの分解を進めてくれます。
It promotes the breakdown of alcohol.
小さいころ、よく時計を分解してあそんでいました。
When I was little, I would play with watches by disassembling them.
お父さん、電気分解の分解効率を向上させることはできる？
Dad, can you improve the decomposition efficiency of electrolysis?