1. [General definition] (Greek: “female” – Latin: centrum, “centred”)
(a). n. Dominant or exclusive focus on women in theory or practice; or to the advocacy of this. Often practiced to the detriment of males.
(b). n. A dominant focus on women’s needs and wants relative to men’s needs and wants. This can happen in the context of academic research, institutional policies, cultural conventions, and in gendered relationships.
Gynocentric (adj). Anything can be considered gynocentric when it is concerned exclusively with a female (or specifically a feminist) point of view.
(a). A pervasive cultural complex geared to prioritizing women and their interests.
(b). A reference to individual gynocentric acts or events (eg. Mother’s Day).
(a). The biological theory that humans prioritize female reproductive capacity.
(a). An exclusive focus on the psychological experiences, emotions, needs and wants of women.
MORE DICTIONARY DEFINITIONS:
Gynocentrism: An ideological focus on females, and issues affecting them, possibly to the detriment of non-females. Contrast with androcentrism.
Gynocentrism: Dominated by or emphasizing female interests or a female point of view.
Gynocentrism: Focused on women; concerned with only women.
Gynocentrism: centred on or concerned exclusively with women; taking a female (or specifically a feminist) point of view.
Gynocentrism: Female-oriented, -centered, -exclusiveness. Sexism , discrimination on the basis of sex.
A radical feminist discourse that champions woman-centered beliefs, identities, and social organization.
EARLIEST MENTIONS OF GYNOCENTRISM
Etymology dictionaries do not record the history and earliest usage of the term gynocentrism. Research of literature archives for this website reveals that gynocentrism has been in use since at least as the late 1800s. Here are a few early references to gynocentrism and gynocentric:
The Open Court, Volume 11 (Open Court Publishing Company, 1897)
Women’s Franchise Newspaper (New Zealand, Thurs 26 November 1907)
The Independent, Volume 67, Issues 3175-3187 (Independent Publications, incorporated, 1909)
Sheffield Daily Telegraph – (Thurs 23rd November 1911)
From Dublin to Chicago: Some Notes on a Tour in America (George H. Doran Company, 1914)
Gynocentrism continued to appear in literature throughout the nineteenth century and into the present with a stable meaning of female centered, and especially to a culture so disposed, in which:
“It is arranged with a view to the convenience and delight of women. Men come in where and how they can.” 
Until recently the term was employed infrequently, perhaps due to the availability of more simpler phrasings such as ‘woman centered’ or ‘female dominated.’ However it has enjoyed a resurgence since the mid 1980s and through the turn of the 21st century in response to increasing hegemony of gynocentric culture and feminist governance.
See also: related words gynæcocracy, gynarchy, gynocracy, gyneolatry.