noun🔗Share腹鳍鱼 A fish of the order Abdominales."The aquarium contained several abdominal, small, colorful fish. "水族箱里养着几种腹鳍鱼，它们体型小巧，颜色鲜艳。fishanimalbiologyChat with AIVocabulary GamePractice Reading
noun🔗Share腹肌 (usually plurale tantum) An abdominal muscle."My son strained his abdominal muscles during soccer practice. "我儿子在足球训练中拉伤了他的腹肌。bodyanatomymedicinephysiologyChat with AIVocabulary GamePractice Reading
adjective🔗Share腹部的， 腹面的 Of or pertaining to the abdomen; ventral."abdominal cavity"腹腔bodyanatomymedicinephysiologyorganChat with AIVocabulary GamePractice Reading
adjective🔗Share腹位的，腹鳍的 Having the ventral fins under the abdomen and behind the pectoral fins."The fish had abdominal fins, positioned below its belly and behind its chest fins. "这种鱼有腹鳍，位于腹部下方，胸鳍之后。anatomyfishanimalbodyorganismbiologyChat with AIVocabulary GamePractice Reading
adjective🔗Share腹部的，腹侧的 Ventral, in describing a fin."The fish's abdominal fin, located on its belly, helped it steer through the water. "这条鱼的腹鳍长在鱼腹上，帮助它在水中控制方向。anatomyfishbodypartbiologyanimalChat with AIVocabulary GamePractice Reading
adjective🔗Share腹部的 Belonging to the order Abdominales of fish."While less common than other usages of "abdominal," here's a sentence that accurately uses the word according to your specified definition: "Scientists noted the abdominal fin placement as a key characteristic when classifying the unusual fish species." "科学家在给这种不寻常的鱼类物种分类时，注意到腹鳍的位置是一个关键特征 (这里 "腹鳍" 指的是腹部鱼类的鳍，符合 "abdominal" 作为形容词描述 Abdominales 鱼类的用法).fishbiologyanimalChat with AIVocabulary GamePractice Reading
