noun
Refers to food supplies, especially for military, expeditions, or emergency use. Somewhat formal or technical.
兵士たちは三日分の口糧を背負って行軍した。
The soldiers marched carrying three days' rations on their backs.
遭難者はわずかな口糧で一週間生き延びた。
The disaster victims survived for a week on meager provisions.