保ほ温おん性せいMeaningsNoun1. ability to retain heat (of clothing, etc.); (degree of) thermal insulation; heat-insulating propertyKanji used保preserve温warm (to the touch)性nature (of a person)Composed of保ほ温おんretaining warmth; keeping heat in; heat insulationNoun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun