rhizoverbBeta
DictionaryRoot: -tio
Latin

-tio

an action, process, or result

Forms

  • -tio
  • -tion- — The longer Latin form.
  • -tion — The ending retained in many English nouns.

Origin

Latin -tio belongs to the older action-noun ending also seen as -io.

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noun

abduction

Movement of a body part away from the body's midline.

The therapist demonstrates shoulder abduction by raising an arm sideways.

Etymology
abLatinaway, off, from
+ducLatinlead, guide, draw along
+tionLatinan action, process, or result

Latin ab- and ducere express leading away. In anatomy, the thing led away is a limb or other body part, and the reference point is the body’s midline.

More examples

  • Hip abduction moves the leg away from the midline.
  • The exercise involves controlled abduction of the arm.
  • Pain limited the patient's range of abduction.

Forms

abduction