persistent stubbornly unyielding
persistence continuing or repeating behavior
presentiment a feeling of evil to come
precipitate bring about abruptly
appreciate be fully aware of; realize fully
precedent an example that is used to justify similar occurrences
time frame a time period during which something occurs or is expected to occur
overseas telegram a telegram sent abroad
precious metal any of the less common and valuable metals often used to make coins or jewelry
Brazos River a river that rises in Mexico and flows across Texas into the Gulf of Mexico
precision rifle an extremely powerful rifle developed for the military
picture frame a framework in which a picture is mounted
paradise tree medium to large tree of tropical North and South America having odd-pinnate leaves and long panicles of small pale yellow flowers followed by scarlet fruits
precise sharply exact or accurate or delimited
power system a system of high tension cables by which electrical power is distributed throughout a region
ecosystem organisms interacting with their physical environment
debris storm the sudden spread of dust and debris from a collapsing building
processing time the time it takes to complete a prescribed procedure
precedence status established in order of importance or urgency
precipitator removes dust particles from gases by electrostatic precipitation