形容詞 lumbar:

1. of or relating to or near the part of the back between the ribs and the hipbones

lum.bar

adj.（形容詞）
Of, near, or situated in the part of the back and sides between the lowest ribs and the pelvis.
腰部的：最低的肋骨與盆骨之間與后背處的部分的，或靠近這部分的，或位于這個(gè)部位的
n.（名詞）
A lumbar artery, nerve, vertebra, or part.
腰動(dòng)脈，腰神經(jīng)，腰脊椎，或腰部

來(lái)源：
New Latin lumb3ris
現(xiàn)代拉丁語(yǔ) lumb3ris
from Latin lumbus [loin]
源自 拉丁語(yǔ) lumbus [腰部]