co·au·thor or co-au·thor (kō-ôthər)
n.
A collaborating or joint author.
tr.v. co·au·thored, co·au·thor·ing, co·au·thors
To be a collaborating or joint author of: “He and a colleague... co-authored a genetics text” (Roger W. Pease, Jr.).

[TahlilGaran] American Dictionary ▲