Meaning: The outer part of the ear or a part of the heart.

Part of speech: noun

Example: The auricle helps in hearing.

Category: Science › Anatomy

Synonyms:

• ear
• pinna

Meaning: An extinct genus of hominins that lived in Africa.

Part of speech: noun

Example: Australopithecus is known for its bipedalism.

Category: Science › Paleontology

Synonyms:

• hominin
• ancestor

Meaning: An organism that produces its own food from inorganic substances.

Part of speech: noun

Example: Plants are autotrophs that convert sunlight into energy.

Category: Science › Biology

Meaning: A plant hormone that regulates growth.

Part of speech: noun

Example: Auxin plays a crucial role in plant development.

Category: Science › Botany

Meaning: Relating to an axis.

Part of speech: adjective

Example: The axial rotation of the Earth affects day and night.

Category: Science › Physics

Meaning: A hypothetical elementary particle.

Part of speech: noun

Example: The axion is proposed as a solution to certain problems in physics.

Category: Science › Physics

Meaning: An imaginary line about which a body rotates.

Part of speech: noun

Example: The Earth rotates on its axis.

Category: Science › Physics

Synonyms: line

Meaning: The angle between a reference direction and a point in the horizontal plane.

Part of speech: noun

Example: The azimuth is used in navigation.

Category: Science › Navigation

Synonyms: angle

Meaning: Referring to a geological era without life.

Part of speech: adjective

Example: The azoic period is characterized by the absence of organisms.

Category: Science › Geology

Meaning: A type of bacteria, often rod-shaped.

Part of speech: noun

Example: The bacillus can cause various infections.

Category: Science › Microbiology

Synonyms: bacterium

Meaning: A current of air that flows back into a room.

Part of speech: noun

Example: The back draught made the room feel chilly.

Category: Science › Physics

Synonyms: draft

Meaning: a chemical element used in batteries and pigments

Part of speech: noun

Example: Cadmium is toxic in large amounts.

Category: Science › Chemistry

Synonyms: Cd

Meaning: a chemical element used in atomic clocks

Part of speech: noun

Example: Caesium is essential for precise timekeeping.

Category: Science › Chemistry

Meaning: a signal or alert given in advance of a potential problem.

Part of speech: phrase

Example: The early warning system detected the storm.

Category: Science › Meteorology

Synonyms:

• alert
• notification

Meaning: the planet we live on.

Part of speech: noun

Example: Earth is the third planet from the sun.

Category: Science › Geography

Synonyms:

• world
• planet

Meaning: a sudden shaking of the ground caused by movements of the earth's tectonic plates.

Part of speech: noun

Example: The earthquake caused significant damage to the buildings.

Category: Science › Geology

Synonyms:

• quake
• tremor

Meaning: the study of the earth and its processes.

Part of speech: noun

Example: Earth science includes geology and meteorology.

Category: Science › Geology

Synonyms: geoscience

Meaning: a human being, especially in a science fiction context.

Part of speech: noun

Example: The alien was curious about earthlings.

Category: Science › Anthropology

Synonyms:

• human
• person

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

Meaning: a chemical element used in electronics

Part of speech: noun

Example: Gallium is used in semiconductors.

Category: Science › Chemistry

Synonyms:

• element
• metal

Meaning: a unit of measurement for liquid, equal to 3.785 liters

Part of speech: noun

Example: He bought a gallon of milk.

Category: Science › Measurement

Synonyms:

• liter
• measure

Meaning: suitable for living in

Part of speech: adjective

Example: The planet is habitable for humans.

Category: Science › Astronomy

Synonyms:

• livable
• inhabitable

Antonyms:

• uninhabitable
• desolate

Meaning: a mineral form of iron oxide

Part of speech: noun

Example: Haematite is often used in jewelry.

Category: Science › Geology

Synonyms:

• iron ore
• mineral

Meaning: a chemical element with the symbol Hf

Part of speech: noun

Example: Hafnium is used in nuclear reactors.

Category: Science › Chemistry

Synonyms:

• element
• metal

Meaning: A period of time when large areas of the Earth were covered with ice sheets.

Part of speech: noun

Example: The last ice age ended about 11,700 years ago.

Category: Science › Geology

Meaning: A thick layer of ice covering a large area, typically at the poles.

Part of speech: noun

Example: The ice cap is melting due to climate change.

Category: Science › Climate

Meaning: A large, thick layer of ice covering a land area, especially in polar regions.

Part of speech: noun

Example: The ice sheet is crucial for regulating the Earth's climate.

Category: Science › Glaciology

Meaning: A floating platform of ice that forms where a glacier or ice sheet meets the ocean.

Part of speech: noun

Example: The ice shelf is breaking apart due to warming temperatures.

Category: Science › Glaciology

Meaning: A suffix used in chemistry to denote a binary compound or an anion.

Part of speech: suffix

Example: The word 'chloride' includes the suffix '-ide'.

Category: Science › Chemistry

Meaning: a tube-shaped optical instrument that creates colorful patterns

Part of speech: noun

Example: The children played with a kaleidoscope to see different designs.

Category: Science › Optics

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 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