D defs.my
Entry 1 sense Webster, 1913

Merman

/mẽrm'-ănˌ/ · Mer·man · IPA /mˈɜrmˌæn/
01 n. The male corresponding to mermaid; a sea man, or man fish.
pl. Mermen
  1. 1.
    The male corresponding to mermaid; a sea man, or man fish.