The Legislation (Definitions of Woman and Man) Amendment Bill would legally define what a 'man' and 'woman' are in New Zealand law.

Explainer - Parliament is currently considering a bill that would officially define what a man and woman are in New Zealand law.

The Legislation (Definitions of Woman and Man) Amendment Bill, a member's bill introduced by New Zealand First MP Jenny Marcroft, passed its first reading last month.

The bill is open for public submission through 2 July.

It's likely to draw a significant amount of public feedback as it works its way through the halls of Parliament.