What is meant by ‘leguminous’ plant? Name two pulses grown in Kharif season and two in rabi season

What is meant by ‘leguminous’ plant? Name two pulses grown in Kharif season and two in rabi season.

LEGUMINOUS plants are those plants that help to restore the fertility of the soil as their small nodules absorb nitrogen from the air and fix it into the soil. Therefore, these crops are grown in rotation with other crops. All pulses are leguminous.
Kharif season: urad, moong.
Rabi season: peas, gram.