| agitate |
to cause to move in a quick, tumbling motion or with force; shake. |
| complex |
difficult to understand. |
| construct |
to build; put together. |
| futile |
unlikely to produce or incapable of producing a desired result; ineffective; useless. |
| hearth |
the floor of a fireplace, or the stone or brick area in front of it. |
| historian |
one who writes about or is an expert on history. |
| hybrid |
the offspring of two plants or animals that are of different species or breeds. |
| novelty |
the quality of being new or unusual. |
| plague |
a deadly disease, sudden invasion of harmful insects, or any terrible thing that harms many people. |
| pregnancy |
the condition in a female human or animal in which the body is developing new life and preparing to give birth. |
| recognition |
the act of realizing that one knows someone or something. |
| reconstruction |
the act or result of rebuilding or remaking. |
| resumption |
the act or fact of starting again or continuing following a pause or interruption. |
| streamline |
to alter so as to make simpler or more efficient, compact, or up-to-date. |
| toxicity |
the condition, property, or fact of being poisonous or containing poisonous substances. |