1. Capable of being left out

See also: incident, incidental, omit

• trial judge
• trial lawyer
• trial period
• trial run
• trial-and-error
• trialed
• Trialeurodes
• Trialeurodes vaporariorum
• trialled
• trialogue
• triamcinolone
• triangle
• triangular
• triangular bandage
• triangular prism
• triangularity
• triangularly
• triangulate
• triangulation
• Triangulum
• Triangulum Australe
• triarchy
• Triassic
• Triassic period
• triathlon