doyenne

1. A female doyen.

   специали́сткаspecialístka, профессиона́лкаprofessionálka

2. The senior or eldest female member of a group, especially one who is most or highly respected.

   Helen Thomas is frequently referred to as "the doyenne of the White House press corps".

   a woman who is the senior member of a group

3. A woman who is highly experienced and knowledgeable in a particular field, subject, or line of work; expert.

regular