| abstract |
existing without physical shape or substance. |
| allegedly |
according to what has been claimed although not proven. |
| buoyant |
lighthearted or cheerful. |
| clammy |
unpleasantly moist, cool, and sticky. |
| competent |
having the skill to do something; capable. |
| conduit |
a channel, ditch, or pipe used to convey water or other liquid. |
| courteous |
being polite or showing good manners. |
| downplay |
to dismiss the significance of; minimize. |
| hypothesis |
a prediction or educated guess that can be tested and can be used to guide further study. |
| lubricate |
to coat or supply with grease, oil, or another slippery substance. |
| obligate |
to make someone do something because of a law or moral principle. |
| preside |
to act as the one in charge. |
| presume |
to take for granted; assume. |
| radiation |
the waves of energy sent out by sources of heat or light, or by radioactive material. |
| tamper |
to meddle in something when one is not asked, and so change or damage it (usually followed by "with"). |