LONDON -- The Supreme Court ruled Wednesday that the U.K. equalities law defines a woman as someone born biologically female. Justice Patrick Hodge said five judges at the court had ruled unanimously that “the terms ‘woman’ and ‘sex’ in the Equality Act refer to a biological woman.”

Judges to rule on definition of a woman in landmark legal battle - Judges to decide if definition includes transgender women with gender recognition certificates

The United Kingdom’s highest court ruled that the legal definition of “woman” excludes trans women, in a case with sweeping consequences for how equality laws are applied.