1. An amino acid that is found in many proteins (especially collagen)

Derived forms: prolines

Type of: amino acid, aminoalkanoic acid

Encyclopedia: Proline

• Fountain of Youth
• fountain pen
• fountainhead
• Fouquieria
• Fouquieria columnaris
• Fouquieria splendens
• Fouquieriaceae
• four
• four flush
• Four Horsemen
• Four Hundred
• four o'clock
• four times
• four-card monte
• four-centered arch
• four-dimensional
• four-eyes
• four-flusher
• four-footed
• four-footed butterfly
• four-four time
• four-hitter
• four-hundredth
• Mumbai
• mumble