English

electrodense

From electro- + dense.

Ancient Greek ἤλεκτρον ‘amber’

French electrum

French électro-

Proto-Indo-European *dens- ‘thick, dense’

Latin dēnsus ‘dense, compact’

Middle French dense

English dense

Today it means

adj That is visualised as dense in electron microscopy (typically due to the presence of metal)

Language periods are conventional ranges, not dates for this word.

Etymograph / electrodense