life
/laɪf/
In a biological sense, this term defines the fundamental state of existence characterized by metabolism, growth, and reproduction. It serves as the primary boundary between the organic world and the inert, chemical composition of minerals and gases. When used in an astrophysical or xenobiological context, the word shifts from a description of known organisms to a search for any detectable biological signature, regardless of how alien the chemistry might be compared to Earth.
Uncountable as a biological concept; countable when referring to specific organisms.
💬Casual Conversation
Mark, the project is dead. My professional life is over.
Chill, Jess. It's not like we're fighting for our lives here.
Meanings
Examples
Scientists are searching for signs of life on Mars.
Collocations & Compounds
form of life
a type of biological entity
Scientists discovered a new form of life in the vents.
life expectancy
the average period a person is expected to live
Life expectancy has increased significantly over the last century.
signs of life
indications that something is alive
The rescue team searched the rubble for any signs of life.
quality of life
the general well-being of an individual
Access to clean water improves the overall quality of life.
life cycle
the series of changes in the life of an organism
The life cycle of a butterfly includes the larval stage.