Wordnet 3.0
NOUN (1)
1.
a sleeve that extends in one piece to the neckline of a coat or sweater with seams from the armhole to the neck;
The Collaborative International Dictionary of English v.0.48:
raglan sleeve \rag"lan sleeve`\ (r[a^]g"lan sl[=e]v`), n.
A sleeve joined to the body of a garment by a long slanting
seam starting at the neck and continuing around the armhole.
Contrasted to a set-in sleeve.
[PJC]
WordNet (r) 3.0 (2006):
raglan sleeve
n 1: a sleeve that extends in one piece to the neckline of a
coat or sweater with seams from the armhole to the neck