螺旋

Chinese

		aquatic snail	lathe; specially for an occasion; revolve
simp. and trad. (螺旋)		螺	旋

Pronunciation

• Mandarin

  (Pinyin): luóxuán

  (Zhuyin): ㄌㄨㄛˊ ㄒㄩㄢˊ

• Cantonese (Jyutping): lo⁴ syun⁴
• Southern Min

  (Hokkien, POJ): lô-soân / lêr-soân / lê-chn̄g

  (Teochew, Peng'im): lo⁵ suang⁵

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• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin: luóxuán
    • Zhuyin: ㄌㄨㄛˊ ㄒㄩㄢˊ
    • Tongyong Pinyin: luósyuán
    • Wade–Giles: lo²-hsüan²
    • Yale: lwó-sywán
    • Gwoyeu Romatzyh: luoshyuan
    • Palladius: лосюань (losjuanʹ)
    • Sinological IPA ^(key): /lu̯ɔ³⁵ ɕy̯ɛn³⁵/
• Cantonese
  • (Standard Cantonese, Guangzhou–Hong Kong)⁺
    • Jyutping: lo⁴ syun⁴
    • Yale: lòh syùhn
    • Cantonese Pinyin: lo⁴ syn⁴
    • Guangdong Romanization: lo⁴ xun⁴
    • Sinological IPA ^(key): /lɔː²¹ syːn²¹/
• Southern Min
  • (Hokkien: Xiamen, Quanzhou, Zhangzhou)
    • Pe̍h-ōe-jī: lô-soân
    • Tâi-lô: lô-suân
    • Phofsit Daibuun: loisoaan
    • IPA (Xiamen, Quanzhou): /lo²⁴⁻²² suan²⁴/
    • IPA (Zhangzhou): /lo¹³⁻²² suan¹³/
  • (Hokkien: Quanzhou)
    • Pe̍h-ōe-jī: lêr-soân
    • Tâi-lô: lêr-suân
    • IPA (Quanzhou): /lə²⁴⁻²² suan²⁴/
  • (Hokkien: General Taiwanese)
    • Pe̍h-ōe-jī: lê-chn̄g
    • Tâi-lô: lê-tsn̄g
    • Phofsit Daibuun: lezng
    • IPA (Taipei): /le²⁴⁻¹¹ t͡sŋ̍³³/
    • IPA (Kaohsiung): /le²³⁻³³ t͡sŋ̍³³/
  • (Teochew)
    • Peng'im: lo⁵ suang⁵
    • Pe̍h-ōe-jī-like: lô suâng
    • Sinological IPA ^(key): /lo⁵⁵⁻¹¹ suaŋ⁵⁵/

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• Middle Chinese: lwa zjwen

Rime
Character	螺	旋
Reading #	1/1	1/2
Initial (聲)	來 (37)	邪 (17)
Final (韻)	戈 (95)	仙 (78)
Tone (調)	Level (Ø)	Level (Ø)
Openness (開合)	Closed	Closed
Division (等)	I	III
Fanqie	落戈切	似宣切
Baxter	lwa	zjwen
Reconstructions
Zhengzhang Shangfang	/luɑ/	/ziuᴇn/
Pan Wuyun	/luɑ/	/zʷiɛn/
Shao Rongfen	/luɑ/	/zjuæn/
Edwin Pulleyblank	/lwa/	/zwian/
Li Rong	/luɑ/	/ziuɛn/
Wang Li	/luɑ/	/zĭwɛn/
Bernhard Karlgren	/luɑ/	/zi̯wɛn/
Expected Mandarin Reflex	luó	xuán
Expected Cantonese Reflex	lo4	cyun4

Noun

螺旋

1. helix; spiral
2. (mechanics) screw

Derived terms

• 螺旋式
• 螺旋推進機 / 螺旋推进机
• 螺旋星系 (luóxuán xīngxì)
• 螺旋桿菌 / 螺旋杆菌 (luóxuán-gānjūn)
• 螺旋槳 / 螺旋桨 (luóxuánjiǎng)
• 螺旋狀 / 螺旋状
• 螺旋菌
• 螺旋藻 (luóxuánzǎo)
• 螺旋體 / 螺旋体 (luóxuántǐ)
• 雙螺旋 / 双螺旋 (shuāngluóxuán)
• 黃金螺旋 / 黄金螺旋 (huángjīn luóxuán)

Descendants

Sino-Xenic (螺旋):

• → Japanese: 螺(ら)旋(せん) (rasen)
• → Korean: 나선(螺旋) (naseon)

Japanese

Kanji in this term
螺	旋
ら Jinmeiyō	せん Grade: S
on'yomi

Etymology 1

First appears in texts from the early 1800s. Ultimately from 螺旋 (MC lwa zjwen). Compare modern Min Nan reading lêr-soân.

Pronunciation

• (Tokyo) らせん [ràséń] (Heiban – [0])
• IPA^(key): [ɾa̠sẽ̞ɴ]

Noun

螺(ら)旋(せん) • (rasen) 

1. a helix, a spiral
2. a screw

Derived terms

• 螺(ら)旋(せん)階(かい)段(だん) (rasen kaidan): a spiral staircase
• 螺(ら)旋(せん)丸(がん) (rasengan)
• 螺(ら)旋(せん)形(けい) (rasenkei): a helix or spiral shape
• 螺(ら)旋(せん)状(じょう) (rasenjō): a helix or spiral shape
• 螺(ら)旋(せん)状(じょう)菌(きん) (rasenjō kin): a spirillum (a spiral-shaped bacterium)
• 螺(ら)旋(せん)推(すい)進(しん)機(き) (rasen suishinki): a screw (as for a ship or boat; obsolete, replaced by propellers)
• 螺(ら)旋(せん)水(みず)揚(あげ)機(き) (rasen mizu-age ki): an Archimedes screw, a screw-shaped water pump

Etymology 2

For pronunciation and definitions of 螺旋 – see the following entry.

【螺子ねじ】 [noun] a screw [noun] a spring or coil that can be wound, such as that of a clock [noun] (figurative) marbles (sanity) Alternative spellings 捻子, 捩子, ネジ

(This term, 螺旋, is an alternative spelling (rare) of the above term.)