Prefixes: Across, Through

Front

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

Back

diaphragm

Front

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

Back

diameter

Front

Identify the nature of an illness or other problem by examination of the symptoms.

Back

diagnose

Front

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

Back

dialect

Front

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

Back

permeable

Front

interpret or see someone or something in a particular way

Back

perceive

Front

pierce and make a hole or holes in

Back

perforate

Front

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

Back

persistent

Front

filter gradually through a porous surface or substance

Back

percolate

Front

spreading widely throughout an area or a group of people

Back

pervasive