• 化学かがく

  chemistry

• 化合かごう

  chemical combination

• 化成かせい

  change, transformation

• 化繊かせん

  synthetic fiber, synthetic fibre, chemical fiber, chemical fibre

• 化石かせき

  fossil

• 化粧けしょう

  make-up, makeup, cosmetics

• 劣化れっか

  deterioration (in quality, performance, etc.), degradation, worsening

• 液化えきか

  liquefaction

• 鈍化どんか

  becoming dull, slowing down

• 強化きょうか

  strengthening, intensifying, reinforcement, enhancement, solidification

• 消化しょうか

  digestion (of food)

• 激化げきか

  intensification, aggravation

• 分化ぶんか

  specialization, specialisation, differentiation

• 軟化なんか

  softening

• 帰化きか

  naturalization, naturalisation

• 文化ぶんか

  culture, civilization, civilisation

• 酸化さんか

  oxidation, oxidization

• 美化びか

  beautification, glorification

• 変化へんか

  change, variation, alteration, mutation, transition, transformation, transfiguration, metamorphosis

• 塩化えんか

  chloridation, salification

• 老化ろうか

  ageing, aging, senile deterioration

• 浄化じょうか

  purification

• 緑化りょっか

  greening (i.e. planting to increase greenery), tree planting, afforestation

• 硬化こうか

  hardening, vulcanization, vulcanisation, sclerosis, curing

• 進化しんか

  evolution

• 悪化あっか

  deterioration, getting worse, worsening, aggravation, degeneration, corruption

• 電化でんか

  electrification

• 同化どうか

  assimilation, absorption

• 感化かんか

  influence (on someone), inspiration

• 化合物かごうぶつ

  compound

• 化け物ばけもの

  goblin, apparition, monster, ghost, phantom, spectre, specter

• 化けるばける

  to take the form of (esp. in ref. to a spirit, fox, raccoon dog, etc.), to assume the shape of, to turn oneself into, to transform oneself into

• 本格化ほんかくか

  regularization, regularisation, getting up speed, proceeding at full tilt

• 一元化いちげんか

  unification, centralization, centralisation

• 機械化きかいか

  mechanization, mechanisation

• 民営化みんえいか

  privatization, privatisation

• 正常化せいじょうか

  normalization, normalisation

• 合理化ごうりか

  rationalization, making (something) conform to reason, justification

• 生化学せいかがく

  biochemistry

• 文化財ぶんかざい

  cultural assets, cultural property

• 国際化こくさいか

  internationalization, internationalisation

• 自動化じどうか

  automation

• 多様化たようか

  diversification

• 変化球へんかきゅう

  breaking ball (pitch), curve ball, screwball

• 深刻化しんこくか

  becoming more serious or severe, aggravation, intensification

• 文化的ぶんかてき

  cultural

• 具体化ぐたいか

  embodiment, materialization, actualization, realization, taking form, taking shape

• お化けおばけ

  ghost, apparition

• 自由化じゆうか

  liberalization, liberalisation, freeing

• 浄化槽じょうかそう

  water-purification tank