sleeping beauty

Short definition from Wiktionary

Noun

1. 1
   A creeping woodsorrel (Oxalis corniculata) a somewhat delicate-appearing, low-growing herbaceous plant, found in warm-temperate and subtropical climates worldwide.
2. 2
   Alternative letter-case form of sleeping beauty (Oxalis corniculata).

Proper noun

1. 1
   A fairy tale originally titled La Belle au bois dormant by Charles Perrault.
2. 2
   The main character in this story, who is in unbroken slumber under a magical spell, awaiting the kiss of a prince.
3. 3
   A transposon used in genetic engineering.
4. 4
   One who is asleep at an inappropriate time.