刺激 しげき伝導 でんどう けいではありませんでした
shigeki dendōkeidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 刺激伝導系

1. Was not the stimulus conduction system.; Was not a stimulus conduction system.

Past/Perfective
Negative
Polite
Formal Register