The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
life expectancy
1 ENTRIES FOUND:
life expectancy
(noun)
life expectancy
noun
plural
life expectancies
life expectancy
noun
plural
life expectancies
Britannica Dictionary definition of LIFE EXPECTANCY
:
the average number of years that a person or animal can expect to live
[
noncount
]
improvements in diet that have resulted in greater
life expectancy
for many people
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
[
count
]
calculating the
life expectancies
of different social groups
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
—
often used figuratively
What is the
life expectancy
of a new computer? [=how long can a new computer be expected to last or be useful?]
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
ASK THE EDITOR
What are the plural forms of
check-in
,
passerby
, and
spoonful
?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
zombie
:
a dead person who is able to move because of magic according to some religions and in stories, movies, etc.
Learn More »