diving petrel
noun
1- a small stocky auk-like seabird with black upper parts and white underparts, which frequents southern oceans鹈燕。
1.1
- Family Pelecanoididae and genus Pelecanoides: four species, in particular the common (or northern) diving petrel (P. urinatrix).鹈燕科, 鹈燕属：4种, 尤指普通（或北方）鹈燕（拉丁名P. urinatrix）。