Meaning: A scale used to measure the magnitude of earthquakes.

Part of speech: noun

Example: The earthquake registered 6.0 on the Richter scale.

Category: Science

Synonyms:

• magnitude scale
• seismic scale

Meaning: Not flexible; stiff.

Part of speech: adjective

Example: The rigid structure of the building ensures safety.

Category: Science › Physics

Synonyms:

• stiff
• inflexible

Antonyms:

• flexible
• yielding

Meaning: Moisture rising through walls from the ground.

Part of speech: noun

Example: Rising damp can cause damage to buildings.

Category: Science › Building

Meaning: A molecule essential for various biological roles in coding, decoding, regulation, and expression of genes.

Part of speech: noun

Example: RNA plays a crucial role in protein synthesis.

Category: Science › Biology

Meaning: strong and healthy; vigorous.

Part of speech: adjective

Example: The robust plant thrived in the sunlight.

Category: Science › Biology

Synonyms:

• sturdy
• tough

Antonyms:

• fragile
• weak

Meaning: a vehicle designed to travel through space.

Part of speech: noun

Example: The rocket launched successfully into orbit.

Category: Science › Aerospace

Synonyms:

• missile
• spacecraft

Meaning: a term used to describe complex or difficult tasks.

Part of speech: noun

Example: It's not rocket science; anyone can learn it.

Category: Science › Aerospace

Synonyms:

• complex task
• difficult problem

Antonyms: simple task

Meaning: a person who works in the field of rocket science.

Part of speech: noun

Example: He is a rocket scientist who designs spacecraft.

Category: Science › Aerospace

Synonyms: aerospace engineer

Meaning: The act of turning around a central point or axis.

Part of speech: noun

Example: The rotation of the Earth causes day and night.

Category: Science › Physics

Synonyms:

• turn
• spin

Meaning: A substance produced by bees, used to nourish larvae and the queen bee.

Part of speech: noun

Example: Royal jelly is often marketed as a health supplement.

Category: Science › Biology

Synonyms: bee secretion

Meaning: Revolutions per minute, a measure of rotational speed.

Part of speech: noun

Example: The engine runs at 3000 rpm.

Category: Science › Physics

Synonyms: revolutions per minute

Meaning: A reddish-brown coating formed on iron or steel due to oxidation.

Part of speech: noun

Example: The old bike was covered in rust.

Category: Science › Chemistry

Synonyms: corrosion

Meaning: A device that releases pressure to prevent explosion or damage.

Part of speech: noun

Example: The boiler has a safety valve to release excess steam.

Category: Science › Engineering

Meaning: A small part or quantity intended to show what the whole is like.

Part of speech: noun

Example: She took a sample of the fabric.

Synonyms:

• specimen
• example

Meaning: A person or device that takes samples.

Part of speech: noun

Example: The sampler collected data from various locations.

Category: Science

Synonyms: tester

Meaning: The species name for modern humans.

Part of speech: noun

Example: Homo sapiens are known for their intelligence.

Category: Science › Biology

Synonyms: humans

Meaning: A highly toxic nerve agent.

Part of speech: noun

Example: Sarin is classified as a chemical weapon.

Category: Science › Chemistry

Synonyms: nerve agent

Meaning: An object that orbits around a planet or another celestial body.

Part of speech: noun

Example: The satellite provided data about the Earth's atmosphere.

Category: Science › Astronomy

Synonyms: orbiter

Meaning: To soak thoroughly or fill completely.

Part of speech: verb

Example: The rain will saturate the ground.

Category: Science › Chemistry

Synonyms: soak

Meaning: Soaked or filled to capacity.

Part of speech: adjective

Example: The saturated soil couldn't absorb any more water.

Category: Science › Chemistry

Synonyms: soaked

Antonyms: dry

Meaning: The state of being filled to capacity, often used in chemistry or marketing.

Part of speech: noun

Example: The saturation of the market led to lower prices.

Category: Science › Chemistry

Synonyms: fullness

Meaning: The systematic study of the structure and behavior of the physical and natural world.

Part of speech: noun

Example: Science helps us understand the universe.

Category: Science

Synonyms:

• study
• discipline

Meaning: An area designed to promote scientific research and development.

Part of speech: noun

Example: The science park hosts many innovative companies.

Category: Science › Research

Synonyms: research park

Meaning: Relating to or based on science.

Part of speech: adjective

Example: The scientific method is essential for research.

Category: Science

Synonyms:

• empirical
• experimental

Meaning: A person who conducts scientific research.

Part of speech: noun

Example: The scientist made a groundbreaking discovery.

Category: Science › Research

Synonyms:

• researcher
• expert

Meaning: Solid material that settles at the bottom of a liquid.

Part of speech: noun

Example: The sediment in the river was analyzed for pollution.

Category: Science › Geology

Synonyms: deposits

Meaning: Relating to sediment or sedimentation.

Part of speech: adjective

Example: Sedimentary rocks are formed from layers of sediment.

Category: Science › Geology

Synonyms: layered

Meaning: To flow or leak slowly through a surface.

Part of speech: verb

Example: Water began to seep through the cracks.

Category: Science › Physics

Synonyms:

• leak
• ooze

Meaning: The slow escape of a liquid through a surface.

Part of speech: noun

Example: Seepage from the tank contaminated the soil.

Category: Science › Physics

Synonyms: leakage

Meaning: Relating to or caused by an earthquake or other vibrations of the earth.

Part of speech: adjective

Example: The seismic activity in the region has increased.

Category: Science › Geology

Synonyms: earthquake-related

Meaning: An instrument that measures and records details of earthquakes.

Part of speech: noun

Example: The seismograph detected the tremors.

Category: Science › Geology

Synonyms: earthquake detector

Meaning: The scientific study of earthquakes and the propagation of seismic waves.

Part of speech: noun

Example: Seismology helps us understand earthquake risks.

Category: Science › Geology

Synonyms: earthquake science

Meaning: The process by which a structure forms itself without external guidance.

Part of speech: noun

Example: The self-assembly of the molecules created a new material.

Category: Science › Chemistry

Synonyms: autonomous assembly

Meaning: A chromosome that determines the sex of an individual.

Part of speech: noun

Example: Humans have two sex chromosomes, X and Y.

Category: Science › Genetics

Synonyms: gender chromosome

Meaning: The scientific study of human sexuality.

Part of speech: noun

Example: Sexology explores various aspects of sexual behavior.

Category: Science › Human Behavior

Synonyms: sexual science

Meaning: An instrument used for measuring angles in navigation.

Part of speech: noun

Example: The sailor used a sextant to determine their position at sea.

Category: Science › Navigation

Synonyms: navigation tool

Meaning: A weather report for maritime activities.

Part of speech: noun

Example: The shipping forecast warned of rough seas.

Category: Science › Meteorology

Synonyms:

• marine weather report
• nautical forecast

Meaning: A wave of pressure caused by an explosion or impact.

Part of speech: noun

Example: The shock wave from the blast shattered windows.

Category: Science › Physics

Synonyms:

• pressure wave
• blast wave

Meaning: Past tense of shine; to emit light.

Part of speech: verb

Example: The sun shone brightly all day.

Category: Science › Physics

Synonyms:

• radiated
• glowed

Meaning: A meteor that appears as a bright streak of light in the sky.

Part of speech: noun

Example: We saw a shooting star during the meteor shower.

Category: Science › Astronomy

Synonyms:

• meteor
• falling star