VOCAB: per- dia-

Front

Thin sheet separating thorax from abdomen

Back

diaphragm

Front

A line passing through the center of a circle or sphere.

Back

diameter

Front

A form of language spoken in a specific area with unique words, grammar, and pronunciation.

Back

Dialect

Front

Material or membrane allowing liquid passage

Back

permeable

Front

Interpret or see someone in a specific way

Back

perceive

Front

pierce and make holes in

Back

perforate

Front

Continuing to do something despite difficulties or opposition.

Back

persistent

Front

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

Back

percolate

Front

spreading widely in an area or among people

Back

pervasive

Front

Nature of an illness or problem

Back

diagnose