ACT Vocabulary List part 6

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Paradox: a statement that seems contradictory but is actually true

Paragon: an example of excellence

Parallel: lines in the same plane that do not intersect each other; in a coordinate plane, noncollinear lines or segments having the same slope as one another

Parallelogram: a quadrilateral (a figure that has four sides) with opposite sides that are parallel and congruent

Parenthetical: an explanatory statement that is set off by parentheses

Pathetic: deserves pity or sympathy

Peculiarity: unusual quality or characteristic

Pendulum: a device that is suspended in such a way to allow it to swing back and forth using gravity

Perceive: the act of becoming aware of something, usually through the senses

Percolate: to slowly pass through a porous substance

Perfunctorily: in a manner that suggests little interest or attention; a routine duty

Perimeter: the boundary of a figure; in math, the distance from one point around the figure to the same point

Periphery: the outermost boundary of an area

Perpendicular: lines that intersect and form 90-degree angles

pH: a scale that measures how acidic or basic a substance is on a scale of 0 to 14. Lower numbers indicate an increasing acidity and higher numbers indicate increasing basicity

Phantom: exists only in the mind (an illusion); a ghost

Phenomenon: an event or circumstance that is significant or extraordinary

Photophores: organs that produce light

Photosynthesis: the process by which plants turn carbon dioxide and water into energy with the aid of sunlight

Pigmentation: coloration

Plagiarism: an act of fraud consisting of copying another's work and pretending that it is original

Point-slope formula: the formula used to calculate the slope of a line: (y1-y2)/(x1-x2)

Positive slope: the incline of a line that slants upward (from left to right)

Pow-wow: a meeting or gathering

Preceding: coming before

Precipitate: to cause something to happen very suddenly

Precipitation: falling products of condensation in the atmosphere (such as rain)

Predominant: having superior strength, paramount

Preliminary: precedes or comes prior to

Prerequisite: required beforehand

Prestigious: having honor or respect from others

Prevail: to triumph or come out on top

Prevalent: commonly used or occurring

Prime number: a positive integer that can only be evenly divided by 1 and itself

Primordial: happening first or very early

Protagonist: the main character of a story or tale

Protein: a compound that consists of amino acids and plays various structural, mechanical, and nutritional roles within organisms

Prototype: an original form of something

Protract: to lengthen or prolong

Prowess: great skill in something

Pseudoscience: irrational or unfounded beliefs masquerading as science (for example, astrology)

Psychologizing: explaining something in psychological terms

Pyrotechnics: a display of fireworks


Quadrant: one part of a larger object that has been divided into four parts

Quadratic equation: an equation in the form of ax2 + bx + c = 0, where a ≠ 0, and has only two solutions for x

Quasi: resembles to some degree

Quintessential: considered the perfect form

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