Leiden jar vs capacitance

Leiden jar and capacitance both are nouns.

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

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

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

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

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