| A | B |
| elliptical | pertaining to or having the form of an ellipse |
| voucher | a small printed piece of paper that entitles the holder to a discount, or that may be exchanged for goods or services |
| radioactive | emitting or relating to the emission of ionizing radiation or particles |
| magnitude | the great size or extent of something |
| reactors | an apparatus or structure in which fissile material can be made to undergo a controlled, self-sustaining nuclear reaction with the consequent release of energy |
| epidemic | a widespread occurrence of an infectious disease in a community at a particular time |
| descent | an action of moving downward, dropping, or falling |
| components | a part or element of a larger whole, especially a part of a machine or vehicle. |
| otherworldly | relating to an imaginary or spiritual world. |
| rubble | waste or rough fragments of stone, brick, concrete, etc., especially as the debris from the demolition of buildings |
| landlocked | a country almost or entirely surrounded by land; having no coastline or seaport |
| allies | a state formally cooperating with another for a military or other purpose. |