hypothecaWiktionary 原文英美构词拆解hypohypo-前缀thecatheca词干hypo-(anatomy) Below; beneath; under. · (medicine) Deficient; less than normal.词源说明From hypo- + theca.释义名词noun1(microbiology, planktology) The lower or posterior half of the theca of a thecate protist such as a diatom or dinoflagellate同族词派生词 1hypothecal