Meaning of せすじ in Japanese

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Definition of せすじ

せすじ(sesuji) · はいきん(haikin) 【背筋】

(n) the muscles along the spine; dorsal muscles
spinal column
それを見てうれしくて背筋がぞくぞくした。
The sight sent chills of delight up my spine.
seam in the back; back seam

せすじがさむくなる(sesujigasamukunaru) 【背筋が寒くなる】

せすじをのばす(sesujiwonobasu) 【背筋を伸ばす】

(exp, v5s) to straighten up one's back (e.g. stand up straight, sit up straight); to hold one's head high
背筋を伸ばして歩きなさい。
Carry your head high.

せすじねずみ(sesujinezumi) · セスジネズミ(sesujinezumi) 【背筋鼠】