Wordnet 3.0
NOUN (1)
1. 
 a wedding hymn; 
ADJECTIVE (1)
1. 
 of or relating to a wedding or marriage; 
- Example: "hymeneal rites"
The Collaborative International Dictionary of English v.0.48:
Hymeneal \Hy`me*ne"al\, Hymenean \Hy`me*ne"an\, a. [L.
   hymeneius, a., also Hymenaeus, n., Hymen, Gr. ? the wedding
   song, also ? Hymen: cf. F. hym['e]n['e]al, hym['e]n['e]en.]
   Of or pertaining to marriage; as, hymeneal rites. --Pope.
   Hymeneal
The Collaborative International Dictionary of English v.0.48:
Hymeneal \Hy`me*ne"al\, Hymenean \Hy`me*ne"an\, n.
   A marriage song. --Milton.
   [1913 Webster]
WordNet (r) 3.0 (2006):
hymeneal
    adj 1: of or relating to a wedding or marriage; "hymeneal rites"
    n 1: a wedding hymn