series circuit

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An electric circuit connected so that current passes through each circuit element in turn without branching.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any electric circuit having all elements joined in a sequence such that the same current flows through them all

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a circuit having its parts connected serially