The 21-year-old Frenchman has arrived from Wigan on a one-month loan deal, following previous spells in the Sky Bet Championship with Blackpool and Wolves.
And the former Strasbourg forward is ready to hit the ground running for Steve Evans' Millers.
"I'm really pleased to come to this club," Nouha told Millers Player. "I've seen that they are doing well in the league and it's a chance to come here, play and show some good things. I'm determined to do good."
"A few days ago I heard from my agent that they were interested and there was no doubt from me to come here to a good team.
"League One is a good division for young players like me to get games under my belt. I've played in the Championship and scored goals so hopefully I can do that here.
"(Evans) spoke to me about how the team plays and I think it's a really attacking team.
"It's really good for anybody who's an attacker to come into the team that plays attacking football. It suits my style, as they try to create a lot of chances to score a lot of goals."
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