| し | ん | 
|---|---|
| 伸 | 
| か | い | 
|---|---|
| 開 | 
| せ | ん | 
|---|---|
| 線 | 
noun
Mathematics. Rare.- involute.
Variations
| Pronunciation | Kanji | Kana | Is Common | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
 
 
 | 伸開線 | しんかいせん | 
Contained Kanji Breakdown
expand, stretch, extend
の.びる シン のぶ (8th, N2)
open, unfold, unseal
カイ ひら.く あ.く (3rd, N4)
line, track
セン すじ (2nd, N2)
thread
いと シ (1st, N2)