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Insect vocabulary for young scientists

From the hard exoskeleton to the buzzing wings, insects have a vocabulary all their own. This list introduces the terms used to describe insect anatomy, life cycles, and behavior, giving students the words they need to talk and write about bugs with more precision in class or at home.

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Insect vocabulary for young scientists

30 words
WordMeaningIn a sentenceSave
insectnounA small invertebrate animal with six legs, three body sections, and typically one or two pairs of wings.The garden buzzed with insects, from bees pollinating flowers to beetles crawling through the soil.
larvanounThe immature, wingless form of an insect or other animal that hatches from an egg before metamorphosis.The larva fed on leaves for weeks before spinning its cocoon.
pupanounThe stage in an insect's development between the larva and the adult, often enclosed in a cocoon.Inside the cocoon, the caterpillar's pupa slowly transforms into a butterfly over two weeks.
metamorphosisnounA complete change in form or nature, especially the biological transformation of an animal during development.The caterpillar's metamorphosis into a butterfly takes about two weeks.
exoskeletonnounA hard external skeleton that supports and protects the body of an animal such as an insect or crab.A lobster must shed its exoskeleton periodically in order to grow larger.
thoraxnounThe part of the body between the neck and the abdomen, containing the heart and lungs; also an insect's midsection.The doctor listened to his thorax with a stethoscope to check his breathing.
abdomennounThe part of the body between the chest and the pelvis that contains the stomach and intestines.The doctor pressed gently on his abdomen to check for tenderness.
antennanounA metal rod or wire device used to send or receive radio, television, or other electromagnetic signals.He climbed onto the roof to adjust the television antenna during the storm.
mandiblenounThe lower jawbone in humans and many animals, or the mouthpart used for biting in insects and other arthropods.The dentist examined the fracture in his mandible after the accident.
pollinatornounAn animal or insect that carries pollen between flowers, helping plants reproduce.Butterflies are important pollinators for many wildflowers in the meadow.
colonynounA country or territory under the political control of another, more powerful country, often with settlers from that country.India was a British colony until it gained independence in 1947.
hivenounA structure in which bees live and raise their young, or the colony of bees itself.The beekeeper carefully opened the hive to check on the honey supply.
swarmnounA large group of insects, or a crowd of people or things, moving together closely.A swarm of bees settled in the old oak tree behind the house.
cocoonnounA protective silky case spun by an insect larva, especially a moth, in which it develops into an adult.The caterpillar spun a cocoon on the underside of the leaf before winter.
moltverbTo shed old skin, feathers, hair, or an outer shell periodically as part of natural growth.Snakes molt several times a year as they grow larger.
nymphnounIn Greek and Roman mythology, a minor female nature spirit associated with a place such as a forest or river.According to legend, a nymph lived in the spring at the edge of the forest.
invertebratenounAn animal that lacks a backbone or spinal column, such as an insect or worm.Snails, spiders, and jellyfish are all common examples of invertebrates found near the coast.
entomologynounThe scientific study of insects, including their behavior, biology, and classification.She switched her major to entomology after discovering her fascination with beetles.
camouflagenounColoring or patterns that help a person, animal, or object blend into its surroundings.The soldier's camouflage made him nearly invisible against the dense brush.
predatornounAn animal that hunts and kills other animals for food.The lion is a top predator that hunts across the open savanna.
preynounAn animal that is hunted and killed by another animal for food.The zebra became easy prey once it strayed from the herd.
speciesnounA group of living organisms that share common characteristics and can interbreed to produce fertile offspring.Scientists discovered a new species of frog deep in the rainforest.
habitatnounThe place and conditions in which an organism normally lives.The hedgerow provides habitat for nesting birds.
migrationnounThe movement of people or animals from one region or habitat to another, often seasonally.The annual migration of wildebeest across the Serengeti attracts tourists from around the world.
infestationnounThe presence of a large, unwanted number of insects, pests, or parasites in a place.An infestation of termites had quietly weakened the wooden beams for years.
stingverbTo cause a sharp, burning pain, as an insect, plant, or chemical might.A wasp stung him on the arm while he was mowing the lawn.
venomnounA poisonous substance produced by certain animals, such as snakes or scorpions, and injected by a bite or sting.The snake's venom can paralyze small prey within seconds of the bite.
buzznounA low, continuous humming sound, or excited talk and interest surrounding something new.There was a buzz of excitement in the hallway before the results were posted.
crawlverbTo move slowly on hands and knees, or to move at a very slow pace.The baby crawled across the living room toward her favorite toy.
wingnounA limb a bird, insect, or aircraft uses to fly, or a section of a building extending from the main structure.The eagle spread its wings wide before diving toward the water.

From egg to adult

Many insects change shape dramatically as they grow, a process called metamorphosis. A larva hatches from an egg and looks nothing like the adult it will become, then enters a resting stage called a pupa, often protected inside a cocoon. Insects that change more gradually pass through a nymph stage instead, molting as they grow larger.

Frequently asked questions

What is the vocabulary word for an insect's life-cycle stages?

The overall process is called metamorphosis, and it includes stages such as larva, pupa, and nymph depending on the type of insect.