ultraclean en · ADJ
Etymology
Etymology tree English ultra- Proto-West Germanic *klainī Old English clǣne Middle English clene English clean English ultraclean From ultra- + clean.
Meanings
-
Exceptionally clean.
"Children raised in an ultraclean environment," he added, "are not being exposed to organisms that help them develop appropriate immune regulatory circuits."
2009 January 27, Jane E Brody, “Babies Know: A Little Dirt Is Good for You”, in New York Times:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| most ultraclean | Degree=Sup | lexicographic | |
| more ultraclean | Degree=Cmp | lexicographic |