| causal |
being or involving a cause. |
| customary |
usual, habitual, or traditional. |
| disclosure |
the act or process of making known, uncovering, or exposing. |
| eligible |
qualified for something; in a position to be chosen. |
| epidemic |
an outbreak of disease that spreads rapidly to many people in one area. |
| hybrid |
the offspring of two plants or animals that are of different species or breeds. |
| niche |
a hollow place set into a wall to hold a statue or some other object. |
| oversee |
to watch over and direct (others or their work); supervise. |
| presumably |
judging by what may reasonably be guessed or predicted. |
| principle |
a basic law or truth on which action or behavior is based. |
| prominent |
easy to see or notice because of some difference. |
| psychology |
the study or science of the mind and of the ways that people feel and act. |
| quarantine |
the keeping of a person, animal, or thing away from others to stop a disease from spreading. |
| royalty |
a member of a king or queen's family, or all such persons as a group. |
| transcontinental |
going or reaching across a continent. |