maglica

1. mist; haze
   Ujutru se nad rekom digla maglica. — In the morning a mist rose over the river.
   Sve vidim kao kroz maglicu. — I see everything as if through a haze.

For 'nebula' (the astronomical object) Serbian normally uses maglina (Orionova maglina); maglica in this sense is found mainly in Croatian texts.