1. A rainbow; an iris

Derived forms: sunbows

• smooth-spoken
• smooth-textured
• smooth-tongued
• smoothbark
• smoothbore
• smoothed
• smoothen
• smoothened
• smoother
• smoothhound
• smoothhound shark
• smoothie
• smoothing iron
• smoothing plane
• smoothly
• smoothness
• smoothy
• smorgasbord
• smother
• smothered
• smotherer
• smothering
• smoulder
• smouldering
• malacostracan crustacean