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The time required for half the nuclei in a sample of an isotope to undergo radioactive decay.
Definition source: English Wiktionary via Wiktextract
Qualifier: nuclear physics
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
In a chemical reaction, the time required for the concentration of a reactant to fall from a chosen value to half that value.
Definition source: English Wiktionary via Wiktextract
Usage: physical
Topics: chemistry, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacological, physiologic, or radiological activity.
Definition source: English Wiktionary via Wiktextract
Topics: medicine, pharmacology, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
The amount of time it takes for an idea or a fashion to lose half of its influential power.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: half life
Antonyms: none provided
Broader terms: time period, period of time, period
Across languages
Translations
83 source translations are retained for this English entry.
-
Armenian:
կիսատրոհման պարբերություն
(kisatrohman parberutʻyun)
— time in physics
-
Azerbaijani:
yarımdağılma dövrü
— time in physics
-
Belarusian:
перыяд паўраспаду
(pjeryjad pawraspadu)
— time in physics
-
Bulgarian:
период на полуразпад
(period na polurazpad)
— time in physics
-
Catalan:
període de semidesintegració
— time in physics
-
Catalan:
període radioactiu
— time in physics
-
Chinese Mandarin:
半衰期
(bànshuāiqī)
— time in physics
-
Czech:
poločas rozpadu
— time in physics
-
Danish:
halveringstid
— time in physics
-
Dutch:
halfwaardetijd
— time in physics
-
Dutch:
halveringstijd
— time in physics
-
Esperanto:
duoniĝa tempo
— time in physics
-
Estonian:
poolestusaeg
— time in physics
-
Finnish:
puoliintumisaika
— time in physics
-
French:
demi-vie
— time in physics
-
Galician:
período de semidesintegración
— time in physics
-
Georgian:
ნახევარდაშლის პერიოდი
(naxevardašlis ṗeriodi)
— time in physics
-
Georgian:
ნახევრად დაშლის პერიოდი
(naxevrad dašlis ṗeriodi)
— time in physics
-
German:
Halbwertszeit
— time in physics
-
Greek:
χρόνος ημιζωής
(chrónos imizoḯs)
— time in physics
-
Hindi:
अर्धायु
(ardhāyu)
— time in physics
-
Hungarian:
felezési idő
— time in physics
-
Icelandic:
helmingunartími
— time in physics
-
Indonesian:
waktu paruh
— time in physics
-
Irish:
leathré
— time in physics
-
Italian:
emivita
— time in physics
-
Italian:
semivita
— time in physics
-
Japanese:
半減期
(hangenki)
— time in physics
-
Kannada:
ಅರ್ಧಾಯುಷ್ಯ
(ardhāyuṣya)
— time in physics
-
Kazakh:
жартылай ыдырау мерзімі
(jartylai ydyrau merzımı)
— time in physics
-
Korean:
반감기
(ban'gamgi)
— time in physics
-
Latvian:
pussabrukšanas periods
— time in physics
-
Lithuanian:
pusėjimo trukmė
— time in physics
-
Macedonian:
период на полураспад
(period na poluraspad)
— time in physics
-
Malay:
separuh hayat
— time in physics
-
Malayalam:
അർദ്ധായുസ്സ്
(aṟddhāyussŭ)
— time in physics
-
Norwegian Bokmål:
halveringstid
— time in physics
-
Norwegian Nynorsk:
halveringstid
— time in physics
-
Persian:
نیمهعمر
(nime-'omr)
— time in physics
-
Polish:
czas połowicznego rozpadu
— time in physics
-
Polish:
okres połowicznego rozpadu
— time in physics
-
Portuguese:
meia-vida
— time in physics
-
Portuguese:
semivida
— time in physics
-
Romanian:
perioadă de înjumătățire
— time in physics
-
Russian:
пери́од полураспа́да
(períod poluraspáda)
— time in physics
-
Serbo-Croatian:
vreme poluraspada
— time in physics
-
Slovak:
polčas premeny
— time in physics
-
Slovene:
razpolovni čas
— time in physics
-
Spanish:
periodo de semidesintegración
— time in physics
-
Spanish:
semivida
— time in physics
-
Spanish:
vida media
— time in physics
-
Swedish:
halveringstid
— time in physics
-
Tagalog:
kalahatimbuhay
— time in physics
-
Tamil:
அரைவாழ்வுக் காலம்
(araivāḻvuk kālam)
— time in physics
-
Telugu:
అర్థ జీవితకాలం
(artha jīvitakālaṁ)
— time in physics
-
Thai:
ครึ่งชีวิต
— time in physics
-
Ukrainian:
пері́од напівро́зпаду
(períod napivrózpadu)
— time in physics
-
Uzbek:
yarim yemirilish davri
— time in physics
-
Vietnamese:
chu kì bán rã
— time in physics
-
Vietnamese:
chu kỳ bán rã
— time in physics
-
Vietnamese:
chu kỳ nửa phân rã
— time in physics
-
Catalan:
semivida
— chemistry: time required for concentration to fall to half
-
Finnish:
puoliintumisaika
— chemistry: time required for concentration to fall to half
-
French:
demi-vie
— chemistry: time required for concentration to fall to half
-
German:
Halbwertszeit
— chemistry: time required for concentration to fall to half
-
Hungarian:
felezési idő
— chemistry: time required for concentration to fall to half
-
Indonesian:
waktu paruh
— chemistry: time required for concentration to fall to half
-
Italian:
emivita
— chemistry: time required for concentration to fall to half
-
Italian:
semivita
— chemistry: time required for concentration to fall to half
-
Japanese:
半減期
(hangenki)
— chemistry: time required for concentration to fall to half
-
Malay:
separuh hayat
— chemistry: time required for concentration to fall to half
-
Russian:
пери́од полужи́зни
(períod polužízni)
— chemistry: time required for concentration to fall to half
-
Spanish:
semivida
— chemistry: time required for concentration to fall to half
-
Tagalog:
kalahatimbuhay
— chemistry: time required for concentration to fall to half
-
Catalan:
semivida
— medicine: time for a substance to lose half of its activity
-
Finnish:
puoliintumisaika
— medicine: time for a substance to lose half of its activity
-
Indonesian:
waktu paruh
— medicine: time for a substance to lose half of its activity
-
Japanese:
半減期
(hangenki)
— medicine: time for a substance to lose half of its activity
-
Malay:
separuh hayat
— medicine: time for a substance to lose half of its activity
-
Norwegian Bokmål:
halveringstid
— medicine: time for a substance to lose half of its activity
-
Norwegian Nynorsk:
halveringstid
— medicine: time for a substance to lose half of its activity
-
Russian:
пери́од полувыведе́ния
(períod poluvyvedénija)
— medicine: time for a substance to lose half of its activity
-
Finnish:
puoliintumisaika
— time to lose half of influential power of an idea or fashion
