1. The ordinal number of eighty in counting order
   - eightieth

See also: ordinal

• megaloblastic anemia
• megalocardia
• megalocephaly
• megalocyte
• megalohepatia
• megalomania
• megalomaniac
• megalomaniacal
• megalomanic
• Megalonychidae
• megalopolis
• Megaloptera
• megalosaur
• Megalosauridae
• megalosaurus
• megaparsec
• megaphone
• megapode
• Megapodiidae
• Megapodius
• Megaptera
• Megaptera novaeangliae
• megascopic
• megasporangium
• megaspore