reservoir

mastery
UK /ˈɹɛz.ə.vwɑː(ɹ)/ US /ˈɹɛz.ə(ɹ).vwɑɹ/nounverbname

card 1 of 8 · context meaning

What does 'reservoir' mean in this sentence?

The vehicle is fitted with an auxiliary reservoir adjacent to the guard's compartment for use when hauling vehicles equipped with vacuum brake gear.