Retrusive

Part of speech: adjective

Definitions

1. Characterized by moving or being pushed backward or inward, especially referring to teeth or jaw positioning
2. Describing a tendency to recede or draw back, particularly in reference to physical structures like teeth or to an inward orientation
3. Referring to traits or features that are set back or recessed, often used in a dental context for the positioning of teeth

Etymology: "Retrusive" is formed in English from the Latin verb "retrudere," meaning "to thrust back," built from "re-" (back) and "trudere" (to thrust). The same Latin verb gave English "protrude" (to thrust forward) and "intrude" (to thrust in), so "retrusive" belongs to a small family of words that all share the idea of pushing. The adjective describes something set back or drawn inward, most often in anatomy and botany, where a part of the body or a plant structure curves or sits backward rather than projecting outward. Its opposite is "protrusive," which describes parts that stick out. The pair shows how a single Latin verb could be sent in either direction with a different prefix.

Synonyms: recessive, receding

Antonyms: protrusive, projecting