1. [ verb ] sleep lightly or for a short period of time
Synonyms: doze snooze
Related terms: nap fall_asleep doze nap
2. [ verb ] be on the verge of sleeping

"The students were drowsing in the 8 AM class"

Related terms: rest rest nod fall_asleep doze
3. [ noun ] (biology) a light fitful sleep
Synonyms: doze
Related terms: sleeping
Similar spelling:   druse