V2 |
| improve or perfect by pruning or polishing | |||
V2 |
| clear from impurities, blemishes, pollution, etc. | |||
V2 |
| [in chemistry] remove impurities from, increase the concentration of, and separate through the process of distillation | |||
V2 |
| make more complex, intricate, or richer | |||
V2 |
| reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities |