词根词缀:ectro-
【来源及含义】Greek: abortion, untimely birth; primarily used to mean "congenital absence" or "defect" of a part which is normally present
【同源单词】ectrocardia, ectrocheiry, ectrochiry, ectrodactylia, ectrodactylism, ectrodactyly
词根词缀:meta-, met-, meth-
【来源及含义】Greek: after, behind, beyond; changed in form, altered; higher [used to designate a higher degree of a branch of science]
【同源单词】acrometagenesis, allochemical metamorphism, atmometamorphism, brachymetapody, digitometatarsal, ectrometacarpia