noun
Technical term used in fields such as chemistry, engineering, and computing to describe whether substances, systems, or components can work together without conflict.
この薬剤と他の薬剤との相容性を確認する必要がある。
It is necessary to check the compatibility of this drug with other drugs.
ソフトウェアの相容性の問題で、新しいOSにアップグレードできなかった。
Due to software compatibility issues, I couldn't upgrade to the new OS.
Compound of 相 (あい, mutual) + 容 (い, to contain, to accept) + 性 (せい, nature, property). The exact historical derivation is uncertain, but the word follows a common pattern for forming technical nouns.