xer- combining form before vowel
▶ with unstressed suffix ˈzɪər AmE ˈzɪr — xerarch ˈzɪər ɑːk AmE ˈzɪr ɑːrk BrE AmE
▶ with stressed suffix zɪə r+ zɪ r+, zə r+ AmE zə r+ zɪ r+ — xerosis zɪə ˈrəʊs ɪs zɪ-, zə- AmE zə ˈroʊs əs zɪ- BrE AmE
xer- combining form before vowel
▶ with unstressed suffix ˈzɪər AmE ˈzɪr — xerarch ˈzɪər ɑːk AmE ˈzɪr ɑːrk BrE AmE
▶ with stressed suffix zɪə r+ zɪ r+, zə r+ AmE zə r+ zɪ r+ — xerosis zɪə ˈrəʊs ɪs zɪ-, zə- AmE zə ˈroʊs əs zɪ- BrE AmE
Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012