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  1. Life | Definition, Origin, Evolution, Diversity, & Facts | Britannica

    Oct 3, 2025 · Life, living matter and, as such, matter whose attributes include responsiveness, growth, metabolism, energy transformation, and reproduction. Each individual is composed of …

  2. Life - Wikipedia

    Life is only known to exist on Earth but extraterrestrial life is thought probable. Artificial life is being simulated and explored by scientists and engineers.

  3. LIFE Definition & Meaning - Merriam-Webster

    The meaning of LIFE is the quality that distinguishes a vital and functional being from a dead body. How to use life in a sentence.

  4. LIFE | English meaning - Cambridge Dictionary

    LIFE definition: 1. the period between birth and death, or the experience or state of being alive: 2. for the whole…. Learn more.

  5. How did life originate? - Understanding Evolution

    Explore the origin of life, from chemical precursors to cellular structures, and understand evolutionary processes that shaped life on Earth.

  6. Life - New World Encyclopedia

    A difficult term to define, life can be considered the characteristic state of living organisms and individual cells, or that quality or property that distinguishes living organisms from dead …

  7. life, n. meanings, etymology and more | Oxford English Dictionary

    There are 40 meanings listed in OED's entry for the noun life, four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

  8. Life (Stanford Encyclopedia of Philosophy)

    Nov 30, 2021 · A wide range of practices rely on competing conceptions of life: including artificial life, origins-of-life research, the search for life, and other projects described above.

  9. Definition of Life – Introductory Biology: Evolutionary and …

    All groups of living organisms share several key characteristics or functions: order, sensitivity or response to stimuli, reproduction, adaptation, growth and development, regulation, …

  10. Life - Evolution, Diversity, Biology | Britannica

    Oct 3, 2025 · If truly only one sort of life on Earth exists, then perspective is lacking in a most fundamental way. On the other hand, the historical continuity of all life-forms means that …