smooth
| operator
| smooth | |
| abbr. | unrough |
| abbr. biol. | s |
| operator | |
| abbr. inf. | o |
| avia. | A person, organization or enterprise engaged in or offering to engage in an aircraft operation. |
| |||
| unrough (http://www.thefreedictionary.com/unrough TimkinTut) | |||
| s (bacterial colony) | |||
| sm; smth | |||
