| Arguably, however, less tractable difficulties confront him in the realm of spirits. |
| To make the method tractable, we approximate this distribution by six equiprobable rate categories. |
| Humans would have selected animals with neotenic variations because they were more tractable. |
| The most convenient or tractable mathematical solutions were used for anatomies or different classes of structures. |
| Mules and hinnies are virtually always sterile, but male mules should be gelded to keep them tractable. |
| And that under-powered engine is pleasingly tractable on the slippery stuff. |
