Meaning: Relating to the study of unusual phenomena.

Part of speech: adjective

Example: He has a Fortean interest in the paranormal.

Category: Science › Paranormal Studies

Meaning: The remains of a prehistoric organism.

Part of speech: noun

Example: The fossil was found in the rock.

Category: Science › Paleontology

Synonyms:

• remains
• artifact

Meaning: Natural fuels formed from the remains of ancient organisms.

Part of speech: noun

Example: Coal is a type of fossil fuel.

Category: Science › Energy

Synonyms:

• coal
• oil

Meaning: To become a fossil or to preserve as a fossil.

Part of speech: verb

Example: The remains may fossilize over millions of years.

Category: Science › Paleontology

Synonyms:

• preserve
• entomb

Meaning: Having four dimensions, including time as the fourth dimension.

Part of speech: adjective

Example: In physics, we often discuss four dimensional space.

Category: Science › Physics

Meaning: The dimension of time, in addition to the three spatial dimensions.

Part of speech: noun

Example: In physics, time is often referred to as the fourth dimension.

Category: Science › Physics

Meaning: Abbreviation for 'Francium', a chemical element.

Part of speech: abbreviation

Example: Fr is the symbol for Francium on the periodic table.

Category: Science › Chemistry

Meaning: A process to separate mixtures into their component parts based on different boiling points.

Part of speech: noun

Example: Fractional distillation is used in oil refining.

Category: Science › Chemistry

Meaning: One of two offspring produced in the same pregnancy from two separate eggs.

Part of speech: noun

Example: Fraternal twins can look very different from each other.

Category: Science › Genetics

Synonyms: non-identical twin

Antonyms: identical twin

Meaning: An atom or molecule that has unpaired electrons, making it highly reactive.

Part of speech: noun

Example: Free radicals can cause damage to cells.

Category: Science › Chemistry

Synonyms: reactive species

Meaning: To turn a liquid into a solid by lowering its temperature.

Part of speech: verb

Example: You need to freeze the ice cream mixture for a few hours.

Category: Science › Physics

Meaning: The temperature at which a liquid turns into a solid.

Part of speech: noun

Example: Water's freezing point is 0 degrees Celsius.

Category: Science › Physics

Meaning: The rate at which something occurs over a period of time.

Part of speech: noun

Example: The frequency of the bus service has increased.

Category: Science › Physics

Meaning: Easily crumbled or broken into small pieces.

Part of speech: adjective

Example: The friable soil was perfect for planting.

Category: Science › Geology

Meaning: The resistance that one surface or object encounters when moving over another.

Part of speech: noun

Example: Friction between the tires and the road helps the car to stop.

Synonyms:

• resistance
• tension

Antonyms:

• smoothness
• harmony

Meaning: To turn a liquid into ice by lowering its temperature.

Part of speech: verb

Example: She froze the leftover soup for later.

Category: Science › Physics

Synonyms:

• chilled
• solidified

Meaning: Turned into ice; extremely cold.

Part of speech: adjective

Example: The frozen lake was safe for skating.

Category: Science › Physics

Synonyms:

• icy
• solidified

Meaning: An acronym for a specific organization or system.

Part of speech: noun

Example: The FRS is known for its research in renewable energy.

Category: Science › Research

Meaning: A substance that provides energy, typically for engines.

Part of speech: noun

Example: Gasoline is a common fuel for cars.

Category: Science › Energy

Synonyms:

• energy source
• propellant

Meaning: A rod that contains nuclear fuel for reactors.

Part of speech: noun

Example: The fuel rod is essential for the reactor's operation.

Category: Science › Nuclear Energy

Synonyms:

• nuclear fuel
• reactor rod

Meaning: Supplied with fuel; energized.

Part of speech: verb

Example: The car was fuelled and ready for the trip.

Category: Science › Energy

Synonyms:

• powered
• energized

Meaning: The point on which a lever pivots.

Part of speech: noun

Example: The fulcrum allows the lever to lift heavy objects.

Category: Science › Physics

Synonyms:

• pivot
• support

Meaning: a type of carbon molecule with a hollow structure

Part of speech: noun

Example: Fullerenes are used in nanotechnology.

Category: Science › Chemistry

Synonyms:

• carbon molecule
• C60

Meaning: a type of clay used for absorbing oil and grease

Part of speech: noun

Example: Fullers earth is often used in cosmetics.

Category: Science › Geology

Synonyms:

• absorbent clay
• bentonite

Meaning: Relating to or caused by fungi.

Part of speech: adjective

Example: The doctor diagnosed her with a fungal infection.

Category: Science › Biology

Synonyms: mycological

Meaning: Plural of fungus; a group of spore-producing organisms.

Part of speech: noun

Example: Mushrooms are a type of fungi.

Category: Science › Biology

Synonyms:

• mushrooms
• toadstools

Meaning: A chemical that kills fungi or inhibits their growth.

Part of speech: noun

Example: Farmers use fungicide to protect their crops from disease.

Category: Science › Agriculture

Synonyms: antifungal

Meaning: Resembling or characteristic of fungi.

Part of speech: adjective

Example: The fungoid growth spread rapidly on the damp wood.

Category: Science › Biology

Synonyms: fungal

Meaning: A type of organism that includes yeasts, molds, and mushrooms.

Part of speech: noun

Example: The fungus thrived in the moist environment.

Category: Science › Biology

Synonyms:

• mushroom
• mold

Meaning: A tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquids.

Part of speech: noun

Example: She used a funnel to pour the juice into the bottle.

Category: Science › Tools

Synonyms:

• conduit
• channel

Meaning: A unit of distance equal to 1/8 of a mile.

Part of speech: noun

Example: The race was a mile and a half, which is twelve furlongs.

Category: Science › Measurement

Synonyms: distance unit

Meaning: Farthest away in space or time.

Part of speech: adjective

Example: The furthermost star was visible with a telescope.

Category: Science › Astronomy

Synonyms:

• farthest
• most distant

Meaning: Farthest away in space or time.

Part of speech: adjective

Example: He traveled to the furthest point of the island.

Category: Science › Geography

Synonyms:

• farthest
• most remote

Meaning: The process of combining two or more things into one.

Part of speech: noun

Example: The fusion of different cultures created a vibrant community.

Category: Science › Chemistry

Synonyms:

• combination
• merging

Meaning: A person who studies or predicts the future.

Part of speech: noun

Example: The futurist shared insights about upcoming technology trends.

Category: Science › Foresight

Synonyms:

• forecaster
• visionary

Meaning: The study of future possibilities and trends.

Part of speech: noun

Example: Futurology helps businesses plan for upcoming changes.

Category: Science › Foresight

Synonyms: future studies

Meaning: a cage filled with earth or stones, used in construction

Part of speech: noun

Example: The workers built a gabion to prevent erosion.

Category: Science › Engineering

Synonyms:

• cage
• basket

Meaning: a chemical element used in various technologies

Part of speech: noun

Example: Gadolinium is used in MRI contrast agents.

Category: Science › Chemistry

Synonyms:

• element
• metal

Meaning: relating to a galaxy

Part of speech: adjective

Example: The galactic center is fascinating to astronomers.

Category: Science › Astronomy

Synonyms:

• cosmic
• stellar

Meaning: a large system of stars, gas, and dust

Part of speech: noun

Example: The Milky Way is a spiral galaxy.

Category: Science › Astronomy

Synonyms:

• star system
• cosmos