Final answer:
Pierre Robin syndrome is the condition consisting of mandibular hypoplasia, cleft palate, and glossoptosis.
Step-by-step explanation:
The condition consisting of mandibular hypoplasia, cleft palate, and glossoptosis is known as Pierre Robin syndrome. This syndrome is a congenital disorder that occurs during fetal development, resulting in these characteristic features. Mandibular hypoplasia refers to the underdevelopment of the lower jaw, cleft palate is a gap in the roof of the mouth, and glossoptosis is the downward displacement of the tongue.