| buoyant |
lighthearted or cheerful. |
| collective |
of or relating to a group that is composed of individuals but is considered together. |
| dictator |
a ruler who has total authority. |
| gross |
rude or disgusting. |
| historian |
one who writes about or is an expert on history. |
| hypothesis |
a prediction or educated guess that can be tested and can be used to guide further study. |
| kernel |
the most basic part of something; the heart of the matter; core. |
| molecule |
the smallest unit of a substance that has all the properties of that substance. A molecule is made up of a single atom or group of atoms. |
| patent |
a government grant that gives someone the right to make, use, or sell an invention. A patent is given for a certain number of years. |
| placement |
the act of putting into position or the state of being put into position; location. |
| robust |
strong, healthy, and full of energy. |
| rustic |
living or happening in the country. |
| scope |
the range or extent of one's view or thoughts. |
| severity |
strictness; harshness. |
| transcontinental |
going or reaching across a continent. |