| Noun | 1. | spreading - process or result of distributing or extending over a wide expanse of space Synonyms: spread |
| 2. | spreading - the opening of a subject to widespread discussion and debate | |
| 3. | spreading - act of extending over a wider scope or expanse of space or time Synonyms: spread | |
| Adj. | 1. | spreading - spreading over a wide area; "under the spreading chestnut tree"; "the spreading circle of lamplight"; "wide-spreading branches" Synonyms: wide-spreading |
| 2. | spreading - spreading by diffusion |