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Computing

backward (file) recovery

Computing

regression test

vestigial organ

angle of recess (of a gear)

arc of recess (of a gear)

inbreeding depression

leaving at the convenience of the company

retirement at the suggestion of one's employer

Physics

degenerate fermions; Fermi gas; Fermi degeneracy; degenerate matter

Computing

stuck-at fault (chip, circuit); stack fault

Mathematics

nullity

Ceremony of the Abdication of his Majesty the Emperor at the Seiden State Hall

announcement of one's retirement

between the devil and the deep blue sea; both advancing and retreating are hell

retired person (who has reached retirement age); retiree

resigning from one's job when one gets married; retirement due to marriage; leaving a job because of marriage

Smaller Enterprise Retirement Allowance Mutual Aid System (retirement pension system established in 1959); SERAMA System; Chutaikyo System

Idiomatic expression

to step back; to retire

Organization name

Smaller Enterprise Retirement Allowance Mutual Aid Corporation

Obsolete term

giving up government service and engaging in agriculture

Rare term

retreat (spiritual, religious)

Rare term

All ships retreat (military command); complete ship withdrawal

Rare term

to be driven into a corner; to be left with nowhere to turn; to be in a dilemma

Rare term

regressive probation