dia- per-

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diaphragm

Back

(n) a thin sheet of material forming a partition; a dome-shaped, muscular partition separating the thorax from the abdomen in mammals

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diameter

Back

(n) a straight line passing from side to side through the center of a body or figure, especially a circle or sphere

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diagnose

Back

(v) identify the nature of an illness or other problem by examination of the symptoms

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dialect

Back

(n) a form of a language that is spoken in a particular area and that uses some of its own words, grammar, and pronunciations

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permeable

Back

(adj) describing a material or membrane that allows liquids or gases to pass through it

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perceive

Back

(v) to interpret or see someone or something in a particular way; to regard as

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perforate

Back

(v) pierce and make a hole or holes in

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persistent

Back

(adj) continuing to do something or to try to do something even though it is difficult or other people want you to stop

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percolate

Back

(v) (of a liquid or gas) to filter gradually through a porous surface or substance

Front

pervasive

Back

(adj) spreading widely throughout an area or a group of people (especially of an unwelcome influence or physical effect)