The Collaborative International Dictionary of English v.0.48:
Welcomer \Wel"com*er\, n. One who welcomes; one who salutes, or receives kindly, a newcomer. --Shak. [1913 Webster]WordNet (r) 3.0 (2006):
welcomer n 1: a person who greets; "the newcomers were met by smiling greeters" [syn: greeter, saluter, welcomer]