milliampere vs current unit

milliampere and current unit both are nouns.

Word	Noun	Adjective	Verb	Adverb
milliampere	Yes	No	No	No
current unit	Yes	No	No	No

As nouns, current unit is a hypernym of milliampere; that is, current unit is a word with a broader meaning than milliampere:

milliampere: one thousandth of an ampere
current unit: a measure of the amount of electric charge flowing past a circuit point at a specific time

milliampere (noun)	current unit (noun)
one thousandth of an ampere	a measure of the amount of electric charge flowing past a circuit point at a specific time