noun
back saw; tenon saw; saw with a spine
A saw with a stiffened spine for precise, straight cuts; used in woodworking.
胴付鋸でほぞ穴を切る。
I cut a mortise with a back saw.
この胴付鋸は細かい作業に向いている。
This back saw is suitable for fine work.
Compound of 胴付き (dōtsuki, 'with a body/spine') + 鋸 (noko, 'saw'). The exact historical derivation is uncertain, but the term describes a saw with a reinforced back.