発散|はっさんhassan[0]heiban (flat)

1. noun, suru verb, transitive verb, intransitive verbemission; emanation; radiation; diffusion; dispersion
   そのバラはよい香かおりを発散はっさんした。↗

   The roses gave off a nice smell.
2. noun, suru verb, transitive verb, intransitive verbletting out (feelings); venting
3. noun, suru verb, transitive verb, intransitive verbdivergence (of light)
4. noun, suru verb, transitive verb, intransitive verb, mathdivergence

• Synonym放出ほうしゅつNeutralReleasing or discharging things, including stockpiled supplies; the focus is on letting something go out, while 「発散」 is the more typical word for venting emotions.
• Synonym拡散かくさんNeutralSpreading or diffusing information, gases and the like; the focus is on the range growing wider.
• Synonym放射ほうしゃNeutralEmission radiating out from a center in all directions; also radiation proper. The emphasis is on the radial pattern.
• Synonym放散ほうさんWrittenWritten/formal word for scents or heat drifting outward, also for releasing emotions. Rare in daily use; say 「発散」 instead.
• Related散布さんぷNeutralSpraying pesticides or sowing seed; the emphasis is on deliberate scattering by people.
• Related広まるひろまるNeutralIntransitive: news, customs and the like spreading or catching on. Focuses on things becoming widespread.
• Related放つはなつWrittenTo fire or release something, also to give off light. Carries a strongly literary feel.
• Related発するはっするNeutralTo emit sound, light or heat, and also to set out or depart. A very versatile verb.
• Related広がるひろがるNeutralIntransitive: to spread out or extend; the focus is on an area or scope growing larger.
• RelatedばらまくCasualScattering things all over, or handing out money freely; colloquial in flavor, compared with the neutral 「発散」.
• Related発光はっこうNeutralEmission of light only. 「発散」 also covers heat, smells and emotions.
• Related散るちるNeutralBlossoms falling, crowds dispersing; also 「気が散る」. 「発散」 stresses something moving from inside outward.
• Related広めるひろめるNeutralTransitive: to spread or popularize something; the focus is on wider circulation.
• Related伝播でんぱWrittenWritten/formal: transmission or spread of things, customs, or waves such as sound and light.
• Related照射しょうしゃNeutralDirecting light or radiation onto a target; the focus is on the beam hitting an object.
• Related射出しゃしゅつNeutralShooting out bullets or jetting water in one direction. 「発散」 by contrast is about dispersing in all directions.
• Related押し広めるおしひろめるWrittenWritten/formal: promoting or expanding a theory or claim. Implies actively pushing something out, not natural emanation.
• Related撒き散らすまきちらすCasualColloquial: scattering things around, e.g. tossing beans or littering. 「発散」 is for heat, smells dispersing or venting feelings.
• Related振りまくふりまくNeutralTo scatter or sprinkle, and figuratively to show off everywhere, as in 「愛嬌を振りまく」.
• Related伝搬でんぱんWrittenWritten/formal: propagation of radio or sound waves, also of pathogens. 「発散」 stresses outward dispersal.
• Related散開さんかいNeutralDispersing or spreading out, including troops deploying; the emphasis is on formation.
• Antonym収束しゅうそくNeutralAntonym: settling or bringing things to a close; in math, convergence. The direct opposite of 「発散」.
• Antonym集中しゅうちゅうNeutralAntonym: concentrating or gathering in one place, against 「発散」's scattering in all directions.
• Antonym凝縮ぎょうしゅくNeutralAntonym: condensing or concentrating vapour, ideas or emotions, the reverse of 「発散」's letting out.

Use 「発散」 for heat, smells or light radiating outward and for venting pent-up feelings, as in 「ストレス発散」. For releasing or discharging something, say 「放出」; for diffusion or the spread of information or gas, 「拡散」; for radiation from a center, 「放射」. Verbs like 「広がる」「広まる」 describe things simply spreading wider, while 「散布」「ばら撒く」 imply deliberate scattering. The antonym is 「収束」, with 「集中」 and 「凝縮」 also opposed.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 内部ないぶにたまったものが外そとへ散ちること。たまったものを外そとへ散ちらすこと。
2. 何なんらかの行動こうどうにより鬱屈うっくつやストレスなどを解消かいしょうさせること。
3. 光ひかりが一点いってんから広ひろがること。
4. 数列すうれつ、級数きゅうすう、関数かんすうなどの極限きょくげんが有限ゆうげんの値あたいに収束しゅうそくしないこと。
5. ベクトル場じょうに対たいして定義ていぎされ、場ばの各点かくてんにおける指ゆび力線りきせんベクトルの流出入りゅうしゅつにゅう量りょう収支しゅうしを記述きじゅつするスカラー場じょう。xyz空間くうかんではdiv, mathbf X=∇· mathbf X=(∂X_x)/(∂x)+(∂X_2)/(∂y)+(∂X_z)/(∂z)。
6. 計算けいさんが終おわらないこと。