Dickinson scored just three points Monday night.
The Terps never led as the Wolverines swept the season series.
The Alabama transfer has started the last six games for the Terps.
Five Terps scored in double figures, led by Aaron Wiggins' 21 points.
Marcus Dockery, Aquan Smart and James Graham have emerged as valuable options off the bench in recent games.
The senior scored a career-high 19 points in the victory.
“It was one of the most memorable things I’ve been a part of in my basketball career."
The Terps' bench was outscored 33-16 against the Hawkeyes.
The Hawkeyes closed the first half on a 35-7 run to put the Terps away early.
“To be on the road, away from our families, not having anyone at the games — all we have is each other,” guard Marcus Dockery said.