词根词缀：calci-, calc-, calcane-, calcio-, calco-, calcar-, calx

【来源及含义】Latin: lime, calcium; heel, bone of the tarsus; to tread [derived from calx, calcis, limestone, lime, pebble; from Greek words halix and psephos meaning "small stone, pebble"]

【同源单词】a capite ad calcem, acalculia, astragalocalcanean, calcaneal, calcanean, calcaneitis

词根词缀：ceco-, cec-, caeco-, caec-

【来源及含义】Latin: blind, blind gut [first part of the large intestine, forming a dilated pouch into which open the ileum, the colon, and the appendix vermiformis]; any blind pouch

【同源单词】caecal, caecotomy, cecalcecitis, cecocentral, cecocolic, cecocolon