Where does “放射線量計” come from?

放射線量計 (Japanese) comes from Japanese 放射線量, from Japanese 放射線, from Japanese 放射, from English radiation, from Latin radiatio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus — small stone, pebble; gravel, rubble.

放射線量計 (Japanese): radiation dosimeter

Definitions

radiation dosimeter

Ancestry of “放射線量計”, step by step

放射線量計 traces back through two separate lines of ancestry.

via Japanese 放射線量

Step	Language	Word	Meaning
1	Japanese	放射線量	radiation dose
2	Japanese	放射線	radiation
3	Japanese	放射	radiation; emission; emit, radiate
4	English	radiation	The shooting forth of anything from a point or...
5	Latin	radiatio	glittering, shining, radiation
6	Latin	-tiō	tion, -ation, -ing
7	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
8	Latin	dissertus	arranged, disposed; explained
9	Latin	disserere	second-person singular future passive indicative...
10	Latin	dis-	asunder, apart, in two; reversal, removal;...
11	Latin	calceus	shoe
12	Latin	calx	limestone; chalk; the finish line
13	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

via Japanese 計

Step	Language	Word	Meaning
1	Japanese	計	plan, total; -meter
2	Middle Chinese	計	—

Every word from Ancient Greek χάλιξ →Every word from Latin -tiō →Every word from Latin dis- →