SLACK JAW Meaning and
Definition
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Slack jaw refers to a condition characterized by a partially open or drop-jawed mouth, often due to the loss of muscle tone in the lower facial muscles. This term is typically used to describe a person who appears to have their mouth hanging open without any apparent reason, such as being deeply engrossed or shocked. The drooping of the jaw results in a relaxed or loose posture of the mouth, leading to the appearance of slackness.
The term "slack jaw" can also be used metaphorically to describe someone who is slow to react or exhibits a lack of mental alertness or intelligence. In this context, it refers to a person who appears dull, vacant, or unaware, as if their mind is disengaged or unfocused.
Sometimes, slack jaw can also refer to a temporary condition caused by temporary paralysis or anesthetic during dental or medical procedures. This temporary loss of muscle control can temporarily cause the mouth to hang open or appear relaxed.
Although slack jaw can be a natural facial expression for some individuals or occur under specific circumstances, persistent or prolonged instances may indicate a medical condition or a side effect of certain medications. In such cases, it is advisable to consult a healthcare professional for an evaluation and appropriate treatment if necessary.
Etymology of SLACK JAW
The word "slack jaw" is a compound term derived from two separate words: "slack" and "jaw".
1. "Slack": The term "slack" originated from the Old English word "slæc", which meant "loose" or "lax". Over time, it came to signify lacking in tension, loose, or not tightly secured. It can also mean being easily defeated, weak, or lacking enthusiasm.
2. "Jaw": "Jaw" is derived from the Old English word "gea", which referred to the movable part of the mouth used for eating, speaking, and biting. It has been used metaphorically to denote a person's mouth or lower part of the face.
When combined, "slack jaw" generally describes a person with a relaxed or open mouth.
