senior nursing officer
US /ˈsiːnjər ˈnɜːrsɪŋ ˈɔːfɪsər/
UK /ˈsiːnjər ˈnɜːrsɪŋ ˈɔːfɪsər/

1.
a high-ranking nurse who is responsible for managing and supervising nursing staff and services in a hospital or healthcare facility
:
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The senior nursing officer conducted the annual performance reviews for all nurses.
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As a senior nursing officer, she is responsible for staff training and development.