Leiden jar vs capacitor

Leiden jar and capacitor both are nouns.

Word	Noun	Adjective	Verb	Adverb
Leiden jar	Yes	No	No	No
capacitor	Yes	No	No	No

As nouns, capacitor is a hypernym of Leiden jar; that is, capacitor is a word with a broader meaning than Leiden jar:

Leiden jar: an electrostatic capacitor of historical interest
capacitor: an electrical device characterized by its capacity to store an electric charge

Other hypernyms of Leiden jar include capacitance, condenser, electrical condenser.

Leiden jar (noun)	capacitor (noun)
an electrostatic capacitor of historical interest	an electrical device characterized by its capacity to store an electric charge