英语词汇“umbonal”的音标、意思、用法及中文翻译-反思网

词汇	umbonal
释义	umbonal adjective biology specializeduk /ʌmˈbəʊ.nəl/ us /ʌmˈboʊ.nəl/(alsoumbonate) having or relating to the umbo of a shell (= a raised, rounded part where the two shells of a mollusc join): The shell has rounded, irregular ribs, with a weak ventral median groove originating in the umbonal region. In the study of bivalves, it is often necessary to break off the umbonal infilling. The shells are small, subtriangular in shape, with an umbonal angle of 100°. In the molluscs, morphology of the umbonal shell may reveal much concerning type of larvae. It has smooth, non-sulcate, asymmetrical and umbonate valves. SMART Vocabulary: related words and phrases Sea creatures abalone amphipod anemone barnacle barrier reef cowrie crab cray crayfish crustacean littleneck clam lobster marron mollusc mussel shellfish shipworm shrimp snow crab soft-shell clam
随便看	be apt to do something apt to be sth be apt to do something/be apt to be something be apt to do sth apt to be something be apt to do sth apt to be sth be-a-question-of be a question of doing be a question of doing something be a question of doing sth bear bearable bearabler bearablest bearablier bearabliest bearably bear away bear-away bear-baiting bearberries bearberry bear-claw bear claw bear comparison with sb/sth beard bearded

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