Definify.com

Webster 1913 Edition

Resumable

Re-sum′a-ble

,

Adj.

Capable of, or admitting of, being resumed.

Sir M. Hale.

Webster 1828 Edition

Resumable

RESU'MABLE

,

Adj.

s as z. [from resume.] That may be taken back, or that may be taken up again.

Definition 2024

resumable

resumable

English

Adjective

resumable ‎(not comparable)

That can be resumed.
Support for resumable downloads means that you can carry on where you left off if you are disconnected from the Internet halfway through.