1. The time of life between 40 and 50
   - mid-forties 
2. The decade from 1940 to 1949
   - 1940s

1. The cardinal number that is the product of ten and four
   - 40, XL

Type of: decade, decennary, decennium, large integer, time of life

Part of: adulthood, maturity

Encyclopedia: Forties

• sebaceous cyst
• sebaceous follicle
• sebaceous gland
• sebacic acid
• Sebastian Cabot
• Sebastian Vizcaino
• Sebastiana
• Sebastodes
• Sebastodes caurinus
• Sebastodes marinus
• Sebastodes miniatus
• Sebastodes ruberrimus
• Sebastopol
• SEbE
• seborrhea
• seborrheic dermatitis
• seborrheic eczema
• seborrheic keratosis
• seborrhoea
• SEbS
• sebum
• sec
• Secale
• Secale cereale
• secant