| 释义 |
het·ero·cer·cal
\| ̷ ̷ ̷ ̷ ̷ ̷|sərkəl\ adjective
Etymology: heter- + -cercal
1. : having the upper lobe larger than the lower with the end of the vertebral column prolonged and somewhat upturned in the upper lobe — used of the tail fin of various fishes (as sharks)
2. : having or relating to a heterocercal tail fin
• het·ero·cer·cal·i·ty \|hed.ə(ˌ)rōˌsərˈkaləd.ē\ noun -es |