Meanings

luteal phase

old age

Meiji period (1868-1912)

lengthening

to pin one's hope on

sleep onset REM period

period of prescription

whole term

compared to previous period

current net income

term of office

building time

periodic inspection

proper time (e.g. for harvesting rice)

periodic check

to make absolutely sure (that all is right)

term-end exam

days of one's menstrual period

best-before period (e.g. foodstuffs)

interphase