prognathic

1 9.9

A face with a lower jaw that sticks out forward

adjective
/prɒɡˈnæθɪk/

Specialized

: prognático

Many primates have prognathic facial features that aid in their feeding habits.

Examples

A prognathic jaw runs in our family, and I share it with an uncle.

Fiction book (2001)
The face is rather prognathic, with the oval mouth revealing small, sharp teeth.

Academic text (1990)
Prognathic (Angle class 3) patients might have a disproportionately large mandible.

Academic text (1999)
A prognathic jaw can affect how a person bites and chews food.
Doctors may assess for prognathic traits during orthodontic examinations.

Synonyms

prognathous

vsprognathic

Specialized

1 9.9

A face with the lower jaw sticking out in front of the upper jaw

is the general term for a forward projecting lower jaw in anatomy

hypognathous

vsprognathic

Specialized

9.9

Having a lower jaw that sticks out past the upper jaw

is the broader anatomical description not limited to animals

Antonyms

recessed

1 5.6

Set back into a wall to make a small shelf or seat

How Projecting

prognathic

Specialized

1 9.9

orthognathic

Specialized

9.9

retromandibular

Specialized

9.9

Surface Forms

prognathic positive

Morphology

prognathic = pro + gnath + ic

Although analyzable as pro- + gnath + -ic, the root 'gnath' is a technical combining form not a standalone English word, so learners cannot reliably derive the meaning.

Etymology

Prognathic comes from the parts pro- ('forward') and gnath ('jaw'), so it describes a jaw that sticks forward.