CORRUGATION
Source: 567
Cor′ru‐ga″tion (k?r′r?–g?″sh?n), n. [[Cf. F. corrugation.]] The act corrugating; contraction into wrinkles or alternate ridges and grooves.
Source: 567
Cor′ru‐ga″tion (k?r′r?–g?″sh?n), n. [[Cf. F. corrugation.]] The act corrugating; contraction into wrinkles or alternate ridges and grooves.