Answer:
fundamental quantity - one of the four quantities that are the basis of systems of measurement
fundamental measure
quantity, measure, amount - how much there is or how many there are of something that you can quantify
temperature - the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
mass - the property of a body that causes it to have weight in a gravitational field
length - the linear extent in space from one end to the other; the longest dimension of something that is fixed in place; "the length of the table was 5 feet"
period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
Explanation:
