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1. A light fitful sleep
   - doze

1. Have a short sleep, esp. during the day
   - nap, catnap, catch a wink [informal], kip [Brit, informal], snooze, doze, zizz [Brit, informal]
    
2. Be on the verge of sleeping
   "The students were drowsing in the 8 AM class"

Derived forms: drowsed, drowsing, drowses

See also: drowse off

Type of: catch some Z's [N. Amer, informal], rest, sleep, sleeping, slumber

Encyclopedia: Drowse