Science & Nature Vocabulary

Vocabulary words related to science & nature that appear on standardized tests including GRE, SAT, TOEFL, and IELTS.

296 words · Page 4 of 5

naturalist TOEFL

A person who studies or is an expert in natural history, especially biology and ecology.

neuron TOEFL

A specialized cell in the nervous system that transmits information through electrical and chemical ...

neutron TOEFL

A subatomic particle found in the nucleus of an atom, with no electric charge and mass slightly grea...

niche GRE TOEFL

A specialized segment or position, often in a market or ecosystem.

nomenclature GRE

A system or set of terms used in a particular field or subject.

nonhuman TOEFL

Not belonging to or derived from the human species.

notate TOEFL

To write down or represent symbolically, especially in music or scientific data.

nuclear TOEFL IELTS

Relating to the nucleus of an atom or nuclear energy.

nucleus SAT TOEFL

The central and most important part of an object, place, or group; also, the core of a cell containi...

nymph GRE

In classical mythology, a minor nature goddess often associated with forests, springs, or rivers; al...

occult SAT GRE

Involving mysterious or supernatural powers or phenomena beyond scientific understanding.

offset GRE

To counterbalance or compensate for something; to set something in opposition.

optical TOEFL

Related to sight or the use of light, especially in instruments used for viewing.

organic TOEFL IELTS

Produced without synthetic chemicals or genetically modified organisms, especially in farming; also ...

organism GRE TOEFL IELTS

Any living entity capable of carrying out life processes, such as a plant, animal, fungus, or bacter...

ornithology GRE

The scientific study of birds.

outbreak SAT TOEFL IELTS

A sudden occurrence of something unwelcome, such as war or disease.

oxygen TOEFL IELTS

A colorless, odorless gas essential for respiration in most living organisms.

oyster GRE TOEFL IELTS

A marine mollusk with a rough shell, often eaten as food and sometimes produces pearls.

ozone TOEFL

A form of oxygen with three atoms per molecule, found in the Earth's upper atmosphere and acting as ...

paleontologist TOEFL

A scientist who studies fossils to understand prehistoric life.

paleontology SAT

The scientific study of fossils and prehistoric life forms.

parasite GRE TOEFL IELTS

An organism that lives on or in a host organism and gets its food from it, often harming the host in...

paternity SAT IELTS

The state or fact of being a father; fatherhood.

pathogen TOEFL

A microorganism or agent that causes disease, such as a virus, bacterium, or fungus.

pathology GRE

The scientific study of diseases, including their causes, processes, and effects.

periodical TOEFL

A publication that appears at regular intervals, such as a magazine or journal.

pest GRE TOEFL IELTS

A troublesome or irritating person or thing; an insect or animal that damages crops or spreads disea...

phonetics TOEFL

The scientific study of speech sounds and how they are produced, transmitted, and received.

photosynthesis GRE TOEFL

The process by which green plants use sunlight to synthesize nutrients from carbon dioxide and water...

physiology SAT TOEFL

The branch of biology that deals with the functions and activities of life or of living matter.

plankton GRE

Tiny drifting organisms in aquatic environments, including both plants and animals.

platelike TOEFL

Having a flat, thin, and broad shape resembling a plate.

pneumonia GRE

A lung infection that causes inflammation and difficulty breathing, often due to bacteria or virus.

pollutant TOEFL

A substance that contaminates air, water, or soil and causes pollution.

postgraduate SAT TOEFL

Relating to or denoting education undertaken after earning a bachelor's degree.

predisposition GRE

A tendency to suffer from a particular condition or behave in a certain way due to genetic or enviro...

preservative GRE TOEFL

A substance added to products such as food or cosmetics to prevent spoilage from bacteria or fungi.

preserve GRE TOEFL IELTS

To maintain something in its original or existing state; to protect from decay or harm.

prohibit TOEFL

To formally forbid or prevent something by rule or law.

pronghorn TOEFL

A swift North American mammal resembling an antelope, known for its speed and keen eyesight.

propellant SAT TOEFL

A substance used to produce a jet of fluid to propel a vehicle, especially a rocket.

protein TOEFL IELTS

A large biomolecule composed of amino acids, essential for cell structure and function.

psychology TOEFL IELTS

The scientific study of the human mind and behavior, including emotions, thoughts, and mental proces...

quantum GRE

A discrete quantity of energy or matter, especially in physics; often used figuratively to mean a si...

quartz TOEFL IELTS

A hard, crystalline mineral composed of silica, commonly used in glassmaking and electronics.

radical SAT TOEFL IELTS

Very new and different from what has existed before; often challenging traditional ideas or conventi...

receptor TOEFL

A protein molecule that receives chemical signals from outside a cell and triggers a response.

repellent SAT GRE

A substance or quality that drives something or someone away; often used to deter insects or people.

replicate GRE TOEFL

To make an exact copy of something; to reproduce.

reptile TOEFL IELTS

A cold-blooded vertebrate animal that typically has scales and lays eggs.

respiration GRE TOEFL

The process of breathing, including inhaling oxygen and exhaling carbon dioxide.

restrict TOEFL

To limit or place constraints on something.

rigor SAT GRE TOEFL IELTS

Strictness, precision, or intensity, especially in standards or effort.

rodent GRE TOEFL

A mammal of the order Rodentia, characterized by continuously growing incisors, such as mice, rats, ...

sanitary GRE TOEFL IELTS

Free from dirt, infection, or harmful bacteria; promoting health and cleanliness.

seabed TOEFL

The bottom of a sea or ocean.

seal IELTS

A marine mammal with flippers and thick fur, or to close securely.

seamount TOEFL

An underwater mountain formed by volcanic activity, rising from the ocean floor.

seaweed TOEFL

Marine algae that grow in the ocean, often attached to rocks or other surfaces.

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