Meaning: Towards the back of a ship.

Part of speech: adverb

Example: The cabin is located abaft the main deck.

Category: Science › Navigation

Meaning: Not involving living organisms.

Part of speech: adjective

Example: Abiotic factors include sunlight and temperature.

Category: Science › Biology

Synonyms:

• non-living
• inorganic

Meaning: The removal of material from the surface of an object.

Part of speech: noun

Example: The ablation of the ice sheet is concerning.

Category: Science › Geology

Synonyms:

• removal
• erasure

Meaning: Relating to the removal of material.

Part of speech: adjective

Example: The ablative process is used in spacecraft design.

Category: Science › Engineering

Synonyms:

• removal
• erasure

Meaning: Pure ethanol, containing no water or other substances.

Part of speech: noun

Example: Absolute alcohol is used in laboratories.

Category: Science › Chemistry

Synonyms:

• pure ethanol
• anhydrous alcohol

Meaning: A measure of the intrinsic brightness of a celestial object.

Part of speech: noun

Example: The absolute magnitude of the star indicates its brightness.

Category: Science › Astronomy

Synonyms: intrinsic brightness

Meaning: Temperature measured on an absolute scale, such as Kelvin.

Part of speech: noun

Example: Absolute temperature is crucial in scientific calculations.

Category: Science › Thermodynamics

Synonyms: Kelvin temperature

Meaning: The lowest possible temperature, 0 Kelvin, where molecular motion stops.

Part of speech: noun

Example: Absolute zero is theoretically unattainable.

Category: Science › Thermodynamics

Synonyms:

• zero kelvin
• absolute temperature

Meaning: To take in or soak up a substance.

Part of speech: verb

Example: Plants absorb water through their roots.

Category: Science › Biology

Synonyms:

• soak up
• take in

Antonyms:

• release
• expel

Meaning: A measure of the amount of light absorbed by a substance.

Part of speech: noun

Example: The absorbance of the solution was measured using a spectrophotometer.

Category: Science › Physics

Synonyms:

• light absorption
• optical density

Meaning: The process of taking in or soaking up a substance.

Part of speech: noun

Example: Absorption of nutrients is vital for health.

Category: Science › Biology

Synonyms:

• intake
• soaking up

Meaning: To increase speed or rate.

Part of speech: verb

Example: The car began to accelerate quickly.

Category: Science › Physics

Synonyms:

• speed up
• hasten

Antonyms:

• slow down
• decelerate

Meaning: The rate of change of velocity of an object.

Part of speech: noun

Example: The acceleration of the car was impressive.

Category: Science › Physics

Synonyms:

• speeding up
• increase in speed

Antonyms:

• deceleration
• slowing down

Meaning: The process of growth or increase by gradual accumulation.

Part of speech: noun

Example: The accretion of sediment formed a new island.

Category: Science › Geology

Synonyms:

• accumulation
• growth

Meaning: The quality of being correct or precise.

Part of speech: noun

Example: The accuracy of the measurements is crucial for the experiment.

Category: Science › Measurement

Synonyms:

• precision
• exactness

Antonyms: inaccuracy

Meaning: Correct in all details; exact.

Part of speech: adjective

Example: Her report was accurate and well-researched.

Category: Science › Measurement

Synonyms:

• correct
• exact

Antonyms: inaccurate

Meaning: Not composed of cells.

Part of speech: adjective

Example: Acellular organisms do not have a cellular structure.

Category: Science › Biology

Synonyms: cell-free

Meaning: A salt or ester of acetic acid, often used in plastics and films.

Part of speech: noun

Example: The acetate film is used for photography.

Category: Science › Chemistry

Synonyms: acetic salt

Meaning: A colorless organic compound with a pungent smell, used in vinegar.

Part of speech: noun

Example: Acetic acid is the main component of vinegar.

Category: Science › Chemistry

Synonyms: ethanoic acid

Meaning: A colorless, volatile liquid used as a solvent and in nail polish remover.

Part of speech: noun

Example: Acetone is commonly used in laboratories.

Category: Science › Chemistry

Synonyms:

• propane
• dimethyl ketone

Meaning: A colorless gas used as a fuel and in welding.

Part of speech: noun

Example: Acetylene is often used in cutting metals.

Category: Science › Chemistry

Synonyms: ethyne

Meaning: A substance with a sour taste that can react with bases.

Part of speech: noun

Example: Lemon juice is an acid.

Category: Science › Chemistry

Synonyms: sour substance

Meaning: Rain that has been made acidic by pollutants.

Part of speech: noun

Example: Acid rain can harm forests and aquatic life.

Category: Science › Environmental Science

Synonyms: polluted rain

Meaning: A salt formed from the reaction of an acid and a base.

Part of speech: noun

Example: Sodium bicarbonate is an example of an acid salt.

Category: Science › Chemistry

Synonyms: acidic salt

Meaning: Having a sour taste or low pH.

Part of speech: adjective

Example: The acidic nature of the solution can corrode metals.

Category: Science › Chemistry

Synonyms:

• sour
• tart

Antonyms: alkaline

Meaning: To make something acidic or more acidic.

Part of speech: verb

Example: The pollution can acidify the water.

Category: Science › Chemistry

Synonyms:

• sour
• tart

Antonyms: alkalize

Meaning: The level of acid in a substance.

Part of speech: noun

Example: The acidity of the soil affects plant growth.

Category: Science › Chemistry

Synonyms:

• sourness
• tartness

Antonyms: alkalinity

Meaning: Slightly acidic or sour in taste.

Part of speech: adjective

Example: The acidulous flavor of the fruit was refreshing.

Category: Science › Chemistry

Synonyms:

• tart
• sour

Meaning: A specialist in acoustics, the science of sound.

Part of speech: noun

Example: The acoustician designed the concert hall for optimal sound.

Category: Science › Acoustics

Synonyms: sound engineer

Meaning: The properties or qualities of a room or building that determine how sound is transmitted.

Part of speech: noun

Example: The acoustics of the theater enhance the performance.

Category: Science › Acoustics

Synonyms: sound quality

Meaning: Having a strong, unpleasant smell or taste.

Part of speech: adjective

Example: The acrid smoke from the fire filled the air.

Category: Science › Chemistry

Synonyms:

• sharp
• bitter

Antonyms: pleasant

Meaning: a chemical compound used in various industrial processes

Part of speech: noun

Example: Acrylamide is often found in fried foods.

Category: Science › Chemistry

Meaning: a chemical reaction where two or more substances combine

Part of speech: noun

Example: An addition reaction is common in organic chemistry.

Category: Science › Chemistry

Synonyms: combination reaction

Meaning: To stick to something or follow a rule.

Part of speech: verb

Example: Please adhere to the guidelines provided.

Category: Science

Synonyms:

• stick
• attach

Antonyms: detach

Meaning: The process of sticking or joining two surfaces together.

Part of speech: noun

Example: The adhesion of the tape was strong.

Category: Science

Synonyms: attachment

Meaning: A substance used for sticking objects together.

Part of speech: noun

Example: I used an adhesive to fix the broken vase.

Category: Science

Synonyms:

• glue
• bond

Meaning: A mixture of different substances.

Part of speech: noun

Example: The admixture of colors created a beautiful painting.

Category: Science

Synonyms:

• mixture
• blend

Meaning: To accumulate on a surface.

Part of speech: verb

Example: The dye will adsorb onto the fabric.

Category: Science

Synonyms:

• attach
• stick

Meaning: A material that can adsorb substances.

Part of speech: noun

Example: Activated carbon is a common adsorbent.

Category: Science

Synonyms: absorbent

Meaning: Happening by chance rather than design.

Part of speech: adjective

Example: The adventitious meeting led to a new partnership.

Category: Science › Biology

Synonyms:

• accidental
• fortuitous

Antonyms:

• intentional
• planned