綿 めん じょう沈殿 ちんでんではありませんでした
menjōchindendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 綿状沈殿

1. Was not cottony precipitate.; Was not a cottony sediment.

Past/Perfective
Negative
Polite
Formal Register
Chemistry