British spelling: present participle of entomologise; currently studying insects or engaging in entomological work.
From entomologise + -ing (present participle suffix). The British spelling retains the 's' even in the gerund form.
Scientists entomologising in tropical rainforests today are discovering that we lose insect species faster than we can even name them—it's a race against time to document Earth's six-legged majority!
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