| Answer | Crossword Clue |
|---|---|
| thermions | An ion or electron emitted by a substance at high temperature |
| thermoelectron | an electron emitted at high temperature, such as one produced in a thermionic valve |
| thermoelectrons | THERMOELECTRON, an electron emitted at high temperature, such as one produced in a thermionic valve |
| thermionic | Of or relating to electrons emitted from a substance at very high temperature |
| vermiculite | an altered form of mica that expands greatly at high-temperature, forming a water-absorbent substance used in seed-planting |
| vermiculites | VERMICULITE, an altered form of mica that expands greatly at high-temperature, forming a water-absorbent substance used in seed-planting |
