English Dictionary

decay

IPA（発音記号）

/dɪˈkeɪ/

動詞

自動詞 記憶媒体・データ ソフトウェア用語 衛星軌道 有機物 物理学 他動詞 前置詞句

(intransitive, electronics, of storage media or the data on them) To undergo bit rot, that is, gradual degradation.

日本語の意味

（記録媒体やそのデータが）徐々に劣化する、ビットロットが発生する現象を指す。

Old magnetic tapes can decay, causing irreversible data loss.

古い磁気テープは劣化して取り返しのつかないデータ損失を引き起こすことがある。

意味（1）

(intransitive, electronics, of storage media or the data on them) To undergo bit rot, that is, gradual degradation.

意味（2）

(intransitive, computing, of software) To undergo software rot, that is, to fail to be updated in a changing environment, so as to eventually become legacy or obsolete.

意味（3）

(intransitive, physics, of a satellite's orbit) To undergo prolonged reduction in altitude (above the orbited body).

Damaged on lift-off, Skylab was left in orbit until its orbit decayed.

意味（4）

(intransitive, of organic material) To rot, to go bad.

The cat's body decayed rapidly.

意味（5）

(intransitive, transitive, physics, chemistry, of an unstable atom) To change by undergoing fission, by emitting radiation, or by capturing or losing one or more electrons; to undergo radioactive decay.

Uranium decays to radium through a long series of steps with a cumulative half-life of 4.4 billion years.

意味（6）

(intransitive, transitive, physics, of a quantum system) To undergo optical decay, that is, to relax to a less excited state, usually by emitting a photon or phonon.

意味（7）

(intransitive, aviation) Loss of airspeed due to drag.

意味（8）

(transitive) To cause to rot or deteriorate.

The extreme humidity decayed the wooden sculptures in the museum's collection in a matter of years.

意味（9）

(programming, intransitive) Of an array: to lose its type and dimensions and be reduced to a pointer, for example when passed to a function.

decays （ present singular third-person ）

decaying （ participle present ）

decayed （ participle past ）

decayed （ past ）