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Affixes: the building blocks of English
Affixes: the building blocks of English
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spir(o)-2

The breath; breathing.

[Latin spirare, to breathe.]

A spirograph is an instrument for recording breathing movements, as is a spirometer, both of which record their results on spirograms; the process of investigation is called spirometry (Spirograph is also the name given to a toy for drawing intricate curved patterns, from spiro-1.) In zoology, a spiracle is an external respiratory opening, for example on an insect.

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