Meaning: a type of clay used in ceramics

Part of speech: noun

Example: Kaolin is essential for making fine porcelain.

Category: Science › Materials

Meaning: an abbreviation for kilocalorie, a unit of energy

Part of speech: noun

Example: This snack contains 200 KC.

Category: Science › Nutrition

Meaning: a unit of temperature measurement

Part of speech: noun

Example: Water freezes at 273.15 kelvin.

Category: Science › Physics

Meaning: A type of protein that forms hair, nails, and the outer layer of skin.

Part of speech: noun

Example: Keratin helps protect our skin from damage.

Category: Science › Biology

Meaning: The inner part of a seed or nut.

Part of speech: noun

Example: The kernel of the corn is sweet and tender.

Meaning: A unit of frequency equal to one thousand hertz.

Part of speech: noun

Example: The radio station broadcasts at 100 kHz.

Category: Science › Physics

Synonyms: kilohertz

Meaning: A unit of frequency equal to one thousand hertz.

Part of speech: noun

Example: The sound system operates at 20 kilohertz.

Category: Science › Physics

Synonyms: kHz

Meaning: Relating to or resulting from motion.

Part of speech: adjective

Example: Kinetic energy is the energy of moving objects.

Category: Science › Physics

Synonyms: dynamic

Meaning: The energy an object possesses due to its motion.

Part of speech: noun

Example: A moving car has kinetic energy.

Category: Science › Physics

Synonyms: motion energy

Meaning: A twist or curl in something that is normally straight.

Part of speech: noun

Example: There was a kink in the hose that stopped the water flow.

Category: Science

Synonyms:

• twist
• curl

Antonyms:

• straightness
• smoothness

Meaning: Abbreviation for kilometer, a unit of measurement equal to 1,000 meters.

Part of speech: noun

Example: The store is 5 km away from here.

Category: Science › Measurement

Synonyms: kilometer

Meaning: Full of knots; complicated or difficult.

Part of speech: adjective

Example: The knotty problem took hours to solve.

Category: Science › Mathematics

Synonyms:

• complicated
• difficult

Antonyms:

• simple
• easy

Meaning: Kilometers per hour, a unit of speed.

Part of speech: noun

Example: The car was traveling at 100 kph.

Category: Science › Physics

Synonyms: km/h

Meaning: A chemical element with the symbol Kr, used in lighting and photography.

Part of speech: noun

Example: Krypton is often used in high-performance light bulbs.

Category: Science › Chemistry

Synonyms: Kr

Meaning: Kilowatt, a unit of power equal to one thousand watts.

Part of speech: noun

Example: The solar panel system produces 5 kW of power.

Category: Science › Physics

Synonyms: kilowatt

Meaning: a place for scientific work

Part of speech: noun

Example: The students conducted experiments in the lab.

Category: Science › Laboratory

Synonyms: laboratory

Meaning: a controlled environment for scientific experiments

Part of speech: noun

Example: The laboratory is equipped with modern tools.

Category: Science › Research

Synonyms: lab

Meaning: to produce milk

Part of speech: verb

Example: Cows lactate to feed their calves.

Category: Science › Biology

Meaning: an acid produced in muscles during exercise

Part of speech: noun

Example: Lactic acid builds up during intense workouts.

Category: Science › Biochemistry

Meaning: a type of bacteria used in fermentation

Part of speech: noun

Example: Lactobacillus is found in yogurt.

Category: Science › Microbiology

Meaning: The immature form of an insect that undergoes metamorphosis.

Part of speech: noun

Example: The larva will eventually become a butterfly.

Category: Science › Biology

Synonyms:

• caterpillar
• young insect

Meaning: Relating to the larva stage of an insect.

Part of speech: adjective

Example: The larval stage is crucial for development.

Category: Science › Biology

Synonyms:

• immature
• developing

Meaning: A natural rubber used in various products.

Part of speech: noun

Example: The gloves are made of latex.

Category: Science › Materials

Synonyms:

• rubber
• elastic

Meaning: melted rock that comes from a volcano

Part of speech: noun

Example: The lava flowed down the mountainside.

Category: Science › Geology

Synonyms:

• magma
• volcanic rock

Meaning: To allow liquid or gas to escape from a container.

Part of speech: verb

Example: The pipe began to leak water.

Synonyms:

• drip
• escape

Antonyms:

• contain
• seal

Meaning: The act of leaking or the amount that has leaked.

Part of speech: noun

Example: The leakage of gas was reported to the authorities.

Category: Science › Physics

Synonyms:

• escape
• loss

Antonyms: containment

Meaning: Having leaks; allowing liquid or gas to escape.

Part of speech: adjective

Example: The leaky roof caused water damage.

Category: Science › Physics

Synonyms:

• drippy
• permeable

Antonyms:

• sealed
• tight

Meaning: A suffix used to indicate a measurement of length.

Part of speech: noun

Example: The term 'short-length' describes a brief duration.

Category: Science › Measurement

Meaning: The measurement of something from end to end.

Part of speech: noun

Example: The length of the table is six feet.

Category: Science › Measurement

Meaning: To make something longer.

Part of speech: verb

Example: You can lengthen the dress by adding fabric.

Category: Science › Measurement

Meaning: In the direction of the length.

Part of speech: adverb

Example: Cut the paper lengthways for better results.

Category: Science › Measurement

Meaning: In a lengthwise direction.

Part of speech: adverb

Example: The fabric should be folded lengthwise.

Category: Science › Measurement

Meaning: A piece of glass or other transparent material used to focus light.

Part of speech: noun

Example: The camera lens needs to be cleaned.

Category: Science › Optics

Meaning: the series of stages in the life of an organism

Part of speech: noun

Example: The life cycle of a butterfly includes several stages.

Category: Science › Biology

Synonyms: development cycle

Meaning: any living organism

Part of speech: noun

Example: Scientists study various life forms on Earth.

Category: Science › Biology

Synonyms: organism

Meaning: the study of living organisms

Part of speech: noun

Example: She is majoring in life science at university.

Category: Science › Biology

Synonyms: biology

Meaning: the duration of time that an organism lives

Part of speech: noun

Example: The average lifespan of a dog is around 10-15 years.

Category: Science › Biology

Synonyms: duration of life

Meaning: the natural agent that stimulates sight

Part of speech: noun

Example: The light from the sun is essential for life.

Category: Science › Physics

Synonyms: illumination

Antonyms: darkness

Meaning: the distance that light travels in one year

Part of speech: noun

Example: The nearest star is several light years away.

Category: Science › Astronomy

Synonyms: astronomical unit

Meaning: a metal rod that directs lightning to the ground

Part of speech: noun

Example: The building was equipped with a lightning conductor.

Category: Science › Physics

Synonyms: lightning rod