gem·i·nate
adjective/ˈdʒemɪneɪt/, /ˈdʒemɪnət/
/ˈdʒemɪneɪt/, /ˈdʒemɪnət/
(phonetics)- (of a speech sound) consisting of the same consonant pronounced twice, for example /kk/ in the middle of the word backcomb
叠音的（如 backcomb 中的 /kk/ ） Word Originlate Middle English: from Latin geminatus, past participle of geminare ‘double, pair with’, from geminus ‘twin’.