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Invertebrate Meaning: Definition, Examples, and Translations

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invertebrate

[ɪnˈvɜrtɪbrət ]

Definitions

Context #1 | Noun

animal

An animal lacking a backbone, such as an insect, worm, or mollusk.

Synonyms

animal without a backbone, non-vertebrate.

Which Synonym Should You Choose?

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Word Description / Examples
invertebrate

General context, newspapers, and magazines. Commonly used term that can appear in both formal and semi-formal writing.

  • The museum had a fascinating exhibit on invertebrates, including spiders and insects
animal without a backbone

Informal conversations, educational settings, especially with younger audiences or non-experts. This phrase is more descriptive and easier to understand for those not familiar with scientific terminology.

  • A worm is an animal without a backbone
non-vertebrate

Similar to 'invertebrate', but slightly less common. Used in scientific discussions or academic papers. It may be used interchangeably with 'invertebrate', though less frequently in everyday use.

  • Non-vertebrate species, such as crustaceans and cephalopods, play a crucial role in the marine ecosystem

Examples of usage

  • Many invertebrates, such as spiders and snails, play important roles in ecosystems.
  • Invertebrates make up the majority of animal species on Earth.
Context #2 | Adjective

biology

Of, relating to, or characteristic of animals lacking a backbone.

Synonyms

non-vertebrate, without a backbone.

Which Synonym Should You Choose?

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Word Description / Examples
invertebrate

Use 'invertebrate' in scientific contexts or when discussing biology. It is formal and appropriate for textbooks, academic papers, or educational settings.

  • Jellyfish and worms are examples of invertebrates
  • The study focused on the invertebrate species in the ocean
non-vertebrate

Use 'non-vertebrate' in scientific contexts, similar to 'invertebrate'. It is less common but still appropriate for formal or academic settings.

  • The research compared vertebrates and non-vertebrates
  • Many non-vertebrates have simple body structures
without a backbone

Use 'without a backbone' in informal or everyday language to make the concept more understandable to a general audience, especially children.

  • A jellyfish is an animal without a backbone
  • Animals without a backbone are called invertebrates

Examples of usage

  • The invertebrate species exhibit a wide range of adaptations to their environments.
  • Invertebrate biology is a fascinating field of study.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Biodiversity

  • Invertebrates make up about 97% of all animal species on Earth, showcasing the diversity of life forms.
  • The most famous invertebrates include insects, arachnids, mollusks, and crustaceans, each displaying unique adaptations.
  • Coral reefs, primarily composed of invertebrates like corals and sponges, are crucial habitats and biodiversity hotspots.

Science

  • Invertebrates often play vital roles in ecosystems, acting as pollinators, decomposers, and a food source for other animals.
  • Many invertebrates can regenerate lost body parts, which is an area of research for potential medical applications in humans.
  • Some invertebrates, like certain jellyfish, have unique biological features, such as bioluminescence, which allows them to glow in the dark.

Cultural Representation

  • Invertebrates have inspired art and literature, with characters like the wise octopus appearing in various stories and folklore.
  • Through the ages, invertebrates have often been used as symbols in literature, representing fragility or adaptability.
  • The famous 'Tortoise and the Hare' fable highlights the contrasts between vertebrates and invertebrates through their different characteristics.

Environmental Impact

  • Invertebrates are indicators of environmental health; their presence can signify clean water and healthy ecosystems.
  • Rising ocean temperatures and pollution affect invertebrate populations, impacting food chains and marine biodiversity.
  • Conservation efforts are increasing to protect invertebrates, as they are essential for maintaining ecological balance and health.

Origin of 'invertebrate'

Main points about word origin

  • The word 'invertebrate' comes from the Latin 'in-' meaning 'not' and 'vertere' meaning 'to turn' or 'to change'.
  • The term began being used in the early 19th century to categorize animals without backbones.
  • It contrasts with 'vertebrate,' which includes all animals with a spine, such as mammals, birds, and reptiles.

The term 'invertebrate' was coined in the early 19th century to describe animals that do not have a backbone. It is derived from the Latin words 'in-' (meaning 'not') and 'vertebra' (meaning 'joint' or 'segment of the spine'). Invertebrates make up the vast majority of animal species on Earth, with diverse forms ranging from insects to jellyfish. Studying invertebrates is crucial for understanding biodiversity and ecological relationships in various ecosystems.

Word Frequency Rank

With rank #18,966, this word belongs to specialized vocabulary. While not common in everyday speech, it enriches your ability to express complex ideas.