l]
| 1. | a container of metal or refractory material employed for heating substances to high temperatures. |
| 2. | Metallurgy. a hollow area at the bottom of a furnace in which the metal collects. |
| 3. | a severe, searching test or trial. |

cru·ci·ble (krōō'sə-bəl) n.
[Middle English crusible, from Medieval Latin crūcibulum, night-light, crucible, possibly from Old French croisuel, cresset; see cresset.] |