Affixes Unit #1

What do the prefixes dia- and per- mean?

• across, through

• against, facing

• before, toward

• after, behind

Choose the word that means: a thin sheet of material forming a partition; a dome-shaped, muscular

partition separating the thorax from the abdomen in mammals

• diaphragm

• diameter

• diagnose

• dialect

Choose the word that means: a straight line passing from side to side through the center of a body or

figure, especially a circle or sphere

• diaphragm

• diameter

• diagnose

• dialect

Choose the word that means: identify the nature of an illness or other problem by examination of the symptoms

• diaphragm

• diameter

• diagnose

• dialect

Choose the word that means: a form of a language that is spoken in a particular area and that uses some

of its own words, grammar, and pronunciations

• diaphragm

• diameter

• diagnose

• dialect

Choose the word the means: describing a material or membrane that allows liquids or gases to pass

through it

• permeable

• perceive

• perforate

• persistent

Choose the word the means: to interpret or see someone or something in a particular way; to regard as

• permeable

• perceive

• perforate

• persistent

Choose the word that means: pierce and make a hole or holes in

• perforate

• persistent

• percolate

• pervasive

Choose the word that means: continuing to do something or to try to do something even though it is

difficult or other people want you to stop

• perforate

• persistent

• percolate

• pervasive

Choose the word that means: filter gradually through a porous surface or substance

• perforate

• persistent

• percolate

• pervasive