adjective Date: 1838 having the upper lobe larger than the lower with the vertebral column extending into the upper lobe, having or relating to a ~ tail fin
HETEROCERCAL
Meaning of HETEROCERCAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012