noun, takes する, intransitive verb, transitive verb

  1. retaining warmth, keeping heat in, heat insulation.

Variations

Pronunciation Kanji Kana Is Common
保温 ほおん

Contained Kanji Breakdown

protect, guarantee, keep
ホ たも.つ ホウ (5th, N1)
human radical (no. 9)
be amazed, disgusted, shocked
ぼ.ける あき.れる ホウ (Kentei Pre-1)
mouth
くち コウ ク (1st, N4)
tree, wood
き モク こ- (1st, N5)
warm
オン あたた.か ぬく (3rd, N2)
water, water radical (no. 85)
さんずい
to feed a prisoner
オン めぐ.む
day, sun, Japan
ひ にっ ニチ (1st, N5)
dish, a helping, plate
さら ベイ (3rd, N2)