Larva definition

lärvə
The newly hatched, wingless, often wormlike form of many insects before metamorphosis.
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(roman mythology) A malevolent spirit of the dead.
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The newly hatched, earliest form of any of various animals that undergo metamorphosis, differing markedly in appearance from the adult.
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The newly hatched, wingless, often wormlike form of many insects, developing into a pupa in species that undergo complete metamorphosis.
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The immature, wingless, and usually wormlike feeding form of those insects that undergo three stages of metamorphosis, such as butterflies, moths, and beetles. Insect larvae hatch from eggs, later turn into pupae, and finally turn into adults.
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The definition of a larva is a young animal or insect that will change into something else in adulthood.

An example of a larva is a caterpillar that will become a butterfly.

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An early stage of growth for some insects and amphibians, in which after hatching from their egg, insects are wingless and resemble a caterpillar or grub, and amphibians lack limbs and ressemble fish.
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An animal in the aforementioned stage.
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The newly hatched, earliest form of any of various animals that undergo metamorphosis, differing markedly in appearance from the adult.
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The six-legged immature form of a tick or mite.
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A form of a recently born or hatched animal that is quite different from its adult stage.
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The early, free-living, immature form of any animal that changes structurally when it becomes an adult, usually by a complex metamorphosis.

The caterpillar is the larva of the butterfly; the tadpole is the larva of the frog.

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An animal in an early stage of development that differs greatly in appearance from its adult stage. Larvae are adapted to a different environment and way of life from those of adults and go through a process of metamorphosis in changing to adults. Tadpoles are the larvae of frogs and toads.
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Other Word Forms

Noun

Singular:
larva
Plural:
larv, larvae, larvas

Origin of larva

  • Latin lārva specter, mask (because it acts as a specter of or a mask for the adult form)

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin larva (“ghost-like, masked").

    From Wiktionary