1. Capable of being described

See also: expressible

• order Selaginellales
• order Siluriformes
• order Siphonaptera
• order Siphonophora
• irritably
• irritant
• irritate
• irritated
• irritatedly
• irritating
• irritatingly
• irritation
• irritative
• irrupt
• irruption
• irruptive
• IRS
• Irtish
• Irtish River
• Irtysh
• Irtysh River
• Irula
• Irving
• Irving Berlin
• Irving Howe