pendulum | n. a body suspended from fixed point as to swing freely to and fro by the alternate action of gravity and momentum |
perceptible | a. capable of being perceived; cognizable; discernible; perceivable |
perception | n. conscious understanding of something; vision ability |
percussion | a. striking one object against another sharply |
perennial | n. lasting indefinitely long time; suggesting self-renewal; remaining active throughout all the time |
periodical | n. publication that appears at fixed intervals |
periodically | ad. in a regular periodic manner; intermittently |
periphery | n. edge, especially of a round surface; surface of a solid; circumference |
periscope | n. optical instruments that contain reflecting elements, such as mirrors and prisms; general or comprehensive view |
perishable | a. liable to perish; subject to destruction or death or decay |
permeate | v. spread or flow throughout; pervade |
permissible | a. proper to be permitted; allowable; admissible. |
perpendicular | a. vertical; upright; intersecting at or forming right angles; extremely steep |
perplex | v. baffle; confuse |
perplexity | n. quality or state of being perplexed or puzzled; complication; intricacy; entanglement; embarrassment |
persecute | v. pursue in a manner to injure, grieve, or afflict; beset with cruelty or malignity; harass; annoy |
persevere | v. endure; be persistent, refuse to stop |
persist | v. continue; insist; persevere |
perspire | v. sweat; excrete perspiration through the pores in the skin |
pertain | v. belong; have connection with, or dependence on |
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