溶解・熔解・鎔解|ようかいyoukai[0]heiban (flat)
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- noun, suru verb, transitive verb, intransitive verbdissolution; dissolving; solution (e.g. chemical)
- noun, suru verb, transitive verb, intransitive verbmelting; liquefying; fusion
Conjugation
| Dictionary form | 溶解する(ようかいする) |
|---|---|
| Polite (masu) | 溶解します(ようかいします) |
| Negative (nai) | 溶解しない(ようかいしない) |
| polite (masen) | 溶解しません(ようかいしません) |
| classical zu / nu | 溶解せず・溶解せぬ(ようかいせず・ようかいせぬ) |
| Past (ta) | 溶解した(ようかいした) |
| polite (mashita) | 溶解しました(ようかいしました) |
| Past negative (nakatta) | 溶解しなかった(ようかいしなかった) |
| polite (masen deshita) | 溶解しませんでした(ようかいしませんでした) |
| Te form | 溶解して(ようかいして) |
| Potential | 溶解できる(ようかいできる) |
| Passive | 溶解される(ようかいされる) |
| Causative | 溶解させる(ようかいさせる) |
| Causative passive | 溶解させられる(ようかいさせられる) |
| Conditional (ba) | 溶解すれば(ようかいすれば) |
| tara | 溶解したら(ようかいしたら) |
| Volitional | 溶解しよう(ようかいしよう) |
| polite (mashou) | 溶解しましょう(ようかいしましょう) |
| Imperative | 溶解しろ(ようかいしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym溶けるとけるNeutralIntransitive verb for melting or dissolving; the everyday default, used in speech and writing alike, while 「溶解」 is a technical Sino-Japanese noun.
- Synonym溶かすとかすNeutralTransitive verb for dissolving or melting something; the agent can be a person, heat, acid and so on.
- Synonym熔けるとけるNeutralVerb for metals melting under heat; applies only to metals and never to dissolving in a liquid.
- Synonym融解ゆうかいWrittenWritten word for a solid turning to liquid under heat, like melting ice; stresses the change of state, not dissolving in a liquid.
- Antonym凝固ぎょうこNeutralAntonym: solidification. It opposes 「溶解」 only in its melting sense (a solid becoming liquid), not in the sense of dissolving in a liquid.
Use 「溶解」 for a substance dissolving in a liquid or metal melting; it leans chemical, as in 「砂糖が水に溶解する」. Everyday speech prefers 「溶ける」 and 「溶かす」; for solids heated to liquid use 「融解」; the antonym is 「凝固」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


