| perorate |
to make a long speech or speak bombastically. [2 definitions] |
| peroration |
the concluding part of a speech in which there is a summing up of the principal points. [2 definitions] |
| peroxidase |
any of a group of enzymes that catalyzes the oxidation of various substances by a peroxide. |
| peroxide |
hydrogen peroxide. [3 definitions] |
| perpendicular |
at or forming a right angle to or with an intersecting line or plane. [7 definitions] |
| perpetrate |
to commit or carry out (a crime, act of mischief, or the like). [2 definitions] |
| perpetual |
lasting or continuing forever. [4 definitions] |
| perpetual motion |
the movement of a hypothetical device which, once put in motion, would operate indefinitely by creating its own energy in excess of that expended. |
| perpetuate |
to cause to last or be remembered. |
| perpetuity |
the state or quality of being perpetual. [4 definitions] |
| perplex |
to puzzle, confuse, or cause uncertainty in the mind of (a person). [2 definitions] |
| perplexed |
puzzled, confused, or uncertain. [2 definitions] |
| perplexing |
causing difficulty in understanding or in figuring out a solution or a way to proceed. |
| perplexity |
the condition of being puzzled, confused, or uncertain. [3 definitions] |
| perquisite |
a payment or benefit in addition to the wages or salary associated with a position. [2 definitions] |
| pers. |
abbreviation of "person." |
| per se |
(Latin) in or by itself or themselves; intrinsically. |
| per second per second |
a unit that expresses the rate of change of a rate of change, such as acceleration, which is the rate of change of velocity. |
| persecute |
to subject (esp. those belonging to a different political, religious, or racial group) to persistent harassment, punishment, or ill-treatment. [2 definitions] |
| persecution |
the act of persecuting, or the condition or fact of being persecuted. [2 definitions] |
| Perseid |
any of numerous meteors visible in the night sky around mid-August each year. |