retardational التعريفات والمعاني == English == === Etymology === From retardation + -al. === Adjective === retardational (comparative more retardational, superlative most retardational) Of or pertaining to retardations. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة retardation retardations retardationes Retardationsprinzip Retardationskoeffizient Retardationseffekt Retardationszeit retardationem retardationi