refillable

verb (used with or without object)

1. to fill again.

noun

2. a material, supply, or the like, to replace something that has been used up: a refill for a prescription.

verb (riːˈfɪl)

1. to fill (something) again

noun (ˈriːfɪl)

2. a replacement for a consumable substance in a permanent container
3. a second or subsequent fillinga refill at the petrol station
4. informal another drink to replace one already drunk

v.

1680s, from re- “back, again” + fill (v.). Related: Refilled; refilling.

n.

1884, from refill (v.). Meaning “a second drink” is from 1929.