Meaning: A branch of mathematics dealing with rates of change.

Part of speech: noun

Example: Differential calculus is essential for understanding motion.

Category: Science › Mathematics

Synonyms:

• calculus
• mathematics

Meaning: An equation involving derivatives of a function.

Part of speech: noun

Example: Solving a differential equation can be complex.

Category: Science › Mathematics

Synonyms:

• equation
• mathematical expression

Meaning: To cause a wave to spread out after passing through a narrow opening.

Part of speech: verb

Example: Light can diffract when it passes through a prism.

Category: Science › Physics

Synonyms:

• spread
• scatter

Meaning: To spread out over a large area.

Part of speech: verb

Example: The scent began to diffuse throughout the room.

Synonyms:

• disperse
• scatter

Antonyms:

• concentrate
• gather

Meaning: To make a liquid thinner or weaker by adding water or another liquid.

Part of speech: verb

Example: You should dilute the juice with water before serving.

Category: Science › Chemistry

Synonyms:

• thin
• water down

Antonyms: concentrate

Meaning: The action of making a substance weaker or less concentrated.

Part of speech: noun

Example: The dilution of the solution made it less effective.

Category: Science › Chemistry

Synonyms:

• weakening
• thinning

Antonyms: concentration

Meaning: A measurable extent of some kind, such as length, breadth, depth, or height.

Part of speech: noun

Example: The dimensions of the box are 10 by 5 by 2 inches.

Category: Science › Mathematics

Synonyms:

• measurement
• size

Meaning: Relating to a specific number of dimensions.

Part of speech: adjective

Example: The model is three-dimensional, allowing for a more realistic view.

Category: Science › Mathematics

Synonyms: multi-dimensional

Meaning: A unit of measurement for the optical power of a lens.

Part of speech: noun

Example: The lens has a power of +2 dioptres.

Category: Science › Optics

Synonyms: diopter

Meaning: Relating to the refraction of light or the properties of lenses.

Part of speech: adjective

Example: The dioptric properties of the lens affect how it focuses light.

Category: Science › Optics

Synonyms: optical

Meaning: A chemical compound containing two oxygen atoms.

Part of speech: noun

Example: Carbon dioxide is produced during respiration.

Category: Science › Chemistry

Synonyms: gas

Meaning: A group of chemically-related compounds that are environmental pollutants.

Part of speech: noun

Example: Dioxins can be harmful to human health.

Category: Science › Chemistry

Synonyms: pollutant

Meaning: A pair of equal and opposite electric charges or magnetic poles separated by a distance.

Part of speech: noun

Example: The dipole created a magnetic field around it.

Category: Science › Physics

Meaning: An electric current flowing in one direction only.

Part of speech: noun

Example: Batteries provide direct current to devices.

Category: Science › Physics

Meaning: A type of airship that can be steered and controlled.

Part of speech: noun

Example: The dirigible floated gracefully above the city.

Category: Science › Aerospace

Synonyms: airship

Meaning: not continuous; having breaks or gaps

Part of speech: adjective

Example: The discontinuous data made analysis difficult.

Category: Science

Synonyms:

• interrupted
• broken

Antonyms:

• continuous
• steady

Meaning: to find something or learn about it for the first time

Part of speech: verb

Example: They will discover new species in the rainforest.

Category: Science › Exploration

Synonyms:

• find
• uncover

Antonyms:

• lose
• miss

Meaning: the act of finding or learning something new

Part of speech: noun

Example: The discovery of penicillin changed medicine.

Category: Science › Exploration

Synonyms:

• finding
• revelation

Meaning: Separate and distinct; not connected.

Part of speech: adjective

Example: The data was divided into discrete categories.

Category: Science › Mathematics

Synonyms:

• distinct
• separate

Antonyms:

• continuous
• connected

Meaning: To free something from entanglement; to sort out.

Part of speech: verb

Example: She tried to disentangle the wires.

Category: Science

Synonyms:

• untangle
• resolve

Antonyms:

• tangle
• entangle

Meaning: A state of imbalance or instability.

Part of speech: noun

Example: The economy is in a state of disequilibrium.

Category: Science › Economics

Synonyms:

• imbalance
• instability

Antonyms:

• equilibrium
• balance

Meaning: To expel or discharge something forcefully.

Part of speech: verb

Example: The volcano disgorged lava and ash.

Category: Science

Synonyms:

• expel
• eject

Meaning: To break into parts or components; to decay.

Part of speech: verb

Example: The old building began to disintegrate over time.

Category: Science

Synonyms:

• break down
• decay

Antonyms:

• integrate
• unite

Meaning: A separation or disconnection between two things.

Part of speech: noun

Example: There is a disjunction between theory and practice.

Category: Science › Logic

Synonyms:

• separation
• disconnection

Antonyms:

• connection
• union

Meaning: To remove or force out from a position.

Part of speech: verb

Example: They tried to dislodge the stuck rock.

Category: Science

Synonyms:

• remove
• extract

Antonyms:

• attach
• secure

Meaning: A state of confusion or lack of order.

Part of speech: noun

Example: The room was in a state of disorder.

Category: Science

Synonyms:

• chaos
• disarray

Antonyms:

• order
• organization

Meaning: Not arranged in order; chaotic.

Part of speech: adjective

Example: His disordered thoughts made it hard to focus.

Category: Science

Synonyms:

• chaotic
• disorganized

Antonyms:

• organized
• ordered

Meaning: The state of being disorganized; lack of order.

Part of speech: noun

Example: Disorganization can lead to mistakes.

Category: Science

Synonyms:

• chaos
• disarray

Antonyms:

• organization
• order

Meaning: Not arranged in a systematic way; chaotic.

Part of speech: adjective

Example: Her disorganized desk made it hard to find anything.

Category: Science

Synonyms:

• chaotic
• messy

Antonyms:

• organized
• neat

Meaning: To confuse someone about their direction or position.

Part of speech: verb

Example: The fog can disorient travelers.

Category: Science

Synonyms:

• confuse
• bewilder

Antonyms:

• orient
• guide

Meaning: To cause someone to lose their sense of direction.

Part of speech: verb

Example: The sudden change in scenery can disorientate visitors.

Category: Science

Synonyms:

• confuse
• bewilder

Antonyms:

• orient
• guide

Meaning: The act of spreading or distributing something over an area.

Part of speech: noun

Example: The dispersal of seeds is important for plant growth.

Category: Science

Synonyms:

• distribution
• spread

Antonyms:

• concentration
• gathering

Meaning: To scatter or spread out over a wide area.

Part of speech: verb

Example: The crowd began to disperse after the event.

Category: Science

Synonyms:

• scatter
• distribute

Antonyms:

• gather
• concentrate

Meaning: Spread out or scattered over an area.

Part of speech: adjective

Example: The dispersed population made it hard to provide services.

Category: Science

Synonyms:

• scattered
• spread out

Antonyms:

• concentrated
• gathered

Meaning: The act of distributing or spreading things over an area.

Part of speech: noun

Example: The dispersion of light creates a rainbow.

Category: Science

Synonyms:

• distribution
• spread

Antonyms:

• concentration
• gathering

Meaning: To move something from its usual place.

Part of speech: verb

Example: The earthquake can displace many people.

Category: Science

Synonyms:

• remove
• shift

Antonyms:

• place
• settle

Meaning: The act of moving something from its usual place.

Part of speech: noun

Example: The displacement of the population was a result of the war.

Category: Science

Synonyms:

• removal
• shift

Antonyms:

• placement
• settlement

Meaning: A unit of measurement for the weight of displaced water by a vessel.

Part of speech: noun

Example: The ship's displacement ton was calculated for safety.

Category: Science › Marine Engineering

Synonyms:

• tonnage
• weight

Meaning: The act of getting rid of something.

Part of speech: noun

Example: Proper disposal of waste is important.

Category: Science

Synonyms:

• removal
• disposition

Antonyms:

• retention
• keeping

Meaning: To get rid of something; to arrange or deal with something.

Part of speech: verb

Example: Please dispose of your trash properly.

Category: Science

Synonyms:

• discard
• get rid of

Antonyms:

• keep
• retain