Transcription
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- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
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- [haf, hahf lahyf]
- /hæf, hɑf laɪf/
- /hɑːf laɪf/
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- US Pronunciation
- US IPA
-
- [haf, hahf lahyf]
- /hæf, hɑf laɪf/
Definitions of half-life word
- noun plural half-life Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate. 1
- noun plural half-life Also called biological half-life. Pharmacology. the time required for the activity of a substance taken into the body to lose one half its initial effectiveness. 1
- noun plural half-life Informal. a brief period during which something flourishes before dying out. 1
- noun half-life time taken for sth to decrease by half 1
- noun half-life finance: time taken for half of principal to be repaid 1
- countable noun half-life The half-life of a radioactive substance is the amount of time that it takes to lose half its radioactivity. 0
Information block about the term
Origin of half-life
First appearance:
before 1905 One of the 15% newest English words
First recorded in 1905-10; half + life
Historical Comparancy
Parts of speech for Half-life
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
half-life popularity
A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 39% of English native speakers know the meaning and use word.
This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.
Top questions with half-life
- what is half-life?
- what is half-life of a drug?
- what is half-life in chemistry?
See also
Matching words
- Words starting with h
- Words starting with ha
- Words starting with hal
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- Words starting with halfli
- Words starting with halflif
- Words starting with halflife