About: electron device

Premodifier: electron
Head noun: device

Same concepts
http://dbpedia.org/resource/Vacuum_tube

Broader concepts

label	provenance	confidence
method	isap:385267244	0.189544

Narrower concepts

label	provenance	confidence
device	isap:396592134	0.330445
transistor	isap:253619855	0.329227