also: いたのまじょうみゃく
noun
diploic vein; vena diploica
Anatomical term for veins within the diploë (spongy bone) of the skull.
板間静脈は頭蓋骨の板間層を走行する。
The diploic veins run through the diploë of the skull.
Compound of 板間 (diploë, literally 'between plates') and 静脈 (vein). The reading ばんかん is the on'yomi; いたのま is a less common kun'yomi-based reading.