| Aurora |
bands or streamers of light that appear in the sky at night in areas around the magnetic poles, caused by solar particles striking atoms in the outer part of the earth's atmosphere. |
| authenticate |
to prove the genuineness, reality, or validity of. |
| data |
facts, figures, or other pieces of information that can be used to learn about something. The word "data" is the plural form of "datum," but is often used with a singular verb. |
| enlist |
to sign up to serve in the military or in some cause. |
| ethical |
of or concerning moral principles of right and wrong. |
| fathom |
to get to the bottom of or understand completely. |
| inactive |
not moving or operating; inert; quiescent. |
| lax |
not rigorous, strict, or careful; loose; lenient. |
| mourn |
to feel or act very sad because of a death or great loss; grieve. |
| ordain |
to admit to the clergy as a priest, minister, or rabbi in a formal ceremony. |
| pend |
to await judgment or decision. |
| practitioner |
a person working in a trade, occupation, or profession. |
| seduce |
to lead into a course of action not considered proper or moral; corrupt. |
| summary |
a short and usually comprehensive statement of what has been previously stated. |
| withdrawn |
emotionally distant or unresponsive. |