| SMO | having a surface free from roughness or bumps or ridges or irregularities |
|---|---|
| SMO | not marked with wrinkles |
| SMO | (botany) of the margin of a leaf shape |
| SMO | (music) without breaks between notes |
| SMO | common shrub of the eastern United States with smooth bark |
| SMO | a variety of aster |
| SMO | Australian timber tree resembling the kauri but having wood much lighter in weight and softer |
| SMO | a weed |
| SMO | erect or trailing perennial of eastern Australia having axillary racemes of blue to purple or red flowers |
| SMO | small bottom-dwelling shark found along both Atlantic coasts |
| SMO | an earthball with a peridium that is firm dry and smooth when young but developing cracks when mature |
| SMO | of western and central United States |