Merrifield knife

Mer·ri·field knife

(mer'i-fēld), a long, narrow, triangularly shaped knife used in gingival surgery.

Mer·ri·field knife

(mer'i-fēld nīf) Long, narrow, triangular knife used in gingival surgery.

Mer·ri·field knife

(mer'i-fēld nīf) A long, narrow, triangularly or spear-shaped bladed instrument used for dental periodontal surgery, specifically to cut interdental tissues.