1. Sleep inducing
   - soporific, soporiferous, somnific, hypnogogic, hypnagogic

See also: depressant

• fluorescent lamp
• fluoridate
• fluoridation
• fluoride
• fluoridisation
• fluoridise
• fluoridization
• fluoridize
• fluorine
• fluorite
• fluoro-
• fluoroboric acid
• fluoroboride
• fluorocarbon
• fluorocarbon plastic
• fluorochrome
• fluoroform
• fluoroscope
• fluoroscopy
• fluorosis
• fluorouracil
• fluorspar
• fluosilicate
• fluosilicic acid
• fluoxetine