词根词缀：delta, delt-; Δ, δ

【来源及含义】Greek: triangular; fourth letter; Δ, δ, of the Greek alphabet

【同源单词】delt, delta, Delta Aquarids, delta bar, delta connection, delta flat

词根词缀：rhythm-, rhythmo-

【来源及含义】Greek: regularly recurring motion; measured motion

【同源单词】accelerated idioventricular rhythm, allorhythmia, allorhythmic, alpha rhythm, anisorhythmia, anisorrhythmia