hy ‧ gien ‧ ist /ˈhaɪdʒiːnəst, ˈhaɪdʒiːnɪst, haɪˈdʒiːnəst/ BrE AmE noun [countable] British English
someone who helps a ↑ dentist by cleaning patients’ teeth and giving advice about keeping teeth healthy SYN dental hygienist
hy ‧ gien ‧ ist /ˈhaɪdʒiːnəst, ˈhaɪdʒiːnɪst, haɪˈdʒiːnəst/ BrE AmE noun [countable] British English
someone who helps a ↑ dentist by cleaning patients’ teeth and giving advice about keeping teeth healthy SYN dental hygienist
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012