Terry extended the lead to 2-0 at 3:48 of the second period during a 5-on-3 power play. He scored on a one-timer off a cross-ice pass from Getzlaf, who faked a slap shot from the right circle before passing to Terry.
The goal was the Ducks' 10th on the power play this season after they scored 11 in 56 games last season.
"You need it to win hockey games," Anaheim coach Dallas Eakins said. "We scored so few goals last year and we thought, 'OK, that's a spot where we can grab some extra goals and close the gap on that goal differential.'"
Terry made it 3-0 at 3:38 of the third period when he shot short side from the left circle on a 2-on-1, and Isac Lundestrom scored a shorthanded goal at 7:19 for the 4-0 final.
"Anytime guys are putting the puck in the back of the net and guys are producing, it runs throughout the team," Gibson said. "Everyone is going right now, and hopefully we can keep it going."
Defenseman Dougie Hamilton, who is tied for the Devils lead in points with six (two goals, four assists), did not play the final two periods because of a lower-body injury.
"No update," Ruff said. "I know he talked to the trainer after the first (period). We were hoping he was going to be able to come back, but he wasn't able to return."
NOTES:Devils goalie Mackenzie Blackwood, who missed the first seven games while recovering from heel surgery, dressed for the first time this season and backed up Bernier. ... Ducks defenseman Kevin Shattenkirk, who had the secondary assist on Terry's first goal, has scored 11 points (three goals, eight assists) this season, which is tied with Adam Fox of the New York Rangers for the NHL lead among defensemen. ... The only Anaheim player with a longer point streak than Terry in the past 10 seasons is Getzlaf, who had an 11-game point streak in 2015-16, and a 14-game streak in 2013-14. ... Forward Max Comtois, who led the Ducks with 16 goals and 33 points in 55 games last season, was a healthy scratch for the second time in the past seven games.