peg lateral

peg lat·e·ral

(peg lat'ĕr-ăl)
Lateral incisor tooth that has a conic deformity by which the tooth surfaces taper toward the incisal edge.

peg lateral,

n a developmental anomaly of the maxillary lateral incisor that causes the tooth to resemble a small peg; developmental disturbance of partial microdontia.