I know a little Arabic, and I also know English. They both have the notion of "gender" built into their syntax. I am Persian and I speak Farsi, which does not have "gender" built into its grammar.
In those languages which have gender, sometimes masculine gender is used to refer to both genders (male and female).
For example, in English, we might say "anyone who leads his team correctly, gets a reward". This includes both men and women.
Does this pattern have a technical name? I want to study about it, but I can't search as I don't know a keyword to find results.