Definition

Noun 1. A surgical procedure: The manual restoration of a displaced or herniated part of the body to its normal position. 2. A biological response: The movement or orientation of a motile organism (like a bacterium or a simple animal) in response to an external stimulus (such as light or chemicals).

Usage and Examples

• Surgical Procedure: > The surgeon performed a taxis to reduce the hernia. > In emergency medicine, taxis is a critical technique for certain types of intestinal displacement.
• Biological Response: > Positive phototaxis is a taxis where an organism moves toward a light source. > The taxis exhibited by bacteria toward nutrients is called chemotaxis.

Advanced Usage

• The term is most commonly used in its combining forms within specialized fields like biology and medicine. For example, phototaxis (movement in response to light), chemotaxis (movement in response to chemicals), and herniotaxis (the surgical procedure for hernia reduction).
• In biology, it is contrasted with kinesis, which is a non-directional change in activity in response to a stimulus.

Variants and Related Words

• -taxis (suffix): Used to form nouns specifying the type of stimulus. (e.g., = response to gravity, = response to touch).
• Tactic (adj.): Pertaining to arrangement or order. While related etymologically, its common meaning ("a plan") is distinct.

Synonyms

• For the surgical meaning: Reduction, manual reduction, repositioning.
• For the biological meaning: Oriented movement, directed locomotion.

Notes on Different Meanings

The two meanings of taxis are from different Greek roots and are considered homographs (same spelling, different meaning and origin). 1. The surgical term comes from Greek taxis meaning "arrangement, order." 2. The biological term comes from Greek taxis meaning "a arranging, orientation." Despite the similar root idea of "arranging," their applications in modern English are entirely separate technical fields.

Noun

1. the surgical procedure of manually restoring a displaced body part
2. a locomotor response toward or away from an external stimulus by a motile (and usually simple) organism