1. Possessing a symmetrical tail that extends beyond the end of the vertebral column (as in most bony fishes)

Antonym: heterocercal

• apraxic
• Apresoline
• apricot
• apricot bar
• apricot sauce
• apricot tree
• April
• April 14
• April fool
• April Fools'
• April Fools' day
• apron
• apron string
• aproned
• apropos
• après-ski
• apse
• apsidal
• apsis
• Apsu
• apt
• Aptenodytes
• Aptenodytes forsteri
• Aptenodytes patagonica
• apteral