单词 | hypognathous |
释义 | hypognathous in British English (haɪˈpɒɡnəθəs) adjective 1. having a lower jaw that protrudes beyond the upper jaw 2. (of insects) having downturned mouthparts Derived forms hypognathism (hyˈpognathism) noun hypognathous in American English (haɪˈpɑgnəθəs; hɪˈpɑgnəθəs) adjective having a protruding lower jaw Word origin hypo- + -gnathoushypognathous in American English (haiˈpɑɡnəθəs) adjective having the lower jaw or mandible longer than the upper Derived forms hypognathism noun Word origin [1870–75; hypo- + -gnathous]This word is first recorded in the period 1870–75. Other words that entered Englishat around the same time include: Mafia, asymmetric, giveaway, immobilize, linkagehypo- is a prefix appearing in loanwords from Greek, where it meant “under” (hypostasis). On this model, hypo- isused, especially as opposed to hyper-, in the formation of compound words (hypothyroid). Other words that use the affix hypo- include: hypocaust, hypocrisy, hypogynous, hypothetical, hypotonic; -gnathous is a combining form meaning “having a jaw” of the kind or in the position specifiedby the initial element. Other words that use the affix -gnathous include: mesognathous, metagnathous, opisthognathous, orthognathous, prognathous |
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