Definition: A dark, sticky material made from a mixture of bitumen and other substances, commonly used for paving roads and roofs.

Example: The workers laid down a new layer of asphalt on the highway.

Definition: To cover a surface with a black, sticky substance made from petroleum, often used for roads and pavements.

Example: The workers will asphalt the new road next week.

Definition: A type of black, sticky substance that is used in construction and paving, often found in natural deposits or made from petroleum.

Example: The workers used asphaltum to seal the roof and prevent leaks.

Definition: Not perfectly round; slightly different from a sphere, often used to describe lenses that correct for distortions in vision.

Example: The optician recommended an aspheric lens to improve my eyesight.

Definition: Not shaped like a perfect sphere; having a shape that deviates from being spherical.

Example: The lens is aspherical, which helps to reduce distortion in the images.

Definition: Describing a sound that is made with a strong breath or puff of air, often used in phonetics to refer to certain consonants.

Example: The letter 'p' in 'pat' is aspirated, making it sound stronger than in 'spat'.

Definition: To produce a sound with a strong burst of breath, often used in phonetics to describe certain consonants.

Example: In phonetics, the letter 'p' in 'pat' is aspirated, meaning it is pronounced with a strong burst of air.

Definition: To be tested or analyzed to determine the presence or amount of a substance, often a valuable metal.

Example: The gold ore will assay to reveal its purity.

Definition: A test or analysis to determine the composition or quality of a substance, often used in scientific contexts.

Example: The laboratory conducted an assay to check the purity of the gold sample.

Definition: To evaluate or analyze something, especially to determine its quality or composition.

Example: The scientists will assay the samples to check for purity.

Definition: The process of testing a substance to determine its composition or quality, often used in chemistry and metallurgy.

Example: The assaying of the metal revealed its purity and value.

Definition: To test or analyze a substance to determine its composition or quality.

Example: The scientists are assaying the soil samples for minerals.

Definition: To come together in one place or group.

Example: The team will assemble in the conference room for the meeting.

Definition: To bring together different parts or people to form a complete unit or group.

Example: We need to assemble the furniture before the guests arrive.

Definition: A highly unstable and radioactive element that is part of the halogen group, similar to iodine, and has a very short half-life.

Example: Astatine is one of the rarest elements on Earth and is used in some types of cancer treatment.

Definition: Describing a mineral or gemstone that shows a star-like pattern when viewed from certain angles, often due to the presence of inclusions or structural features.

Example: The asteriated sapphire sparkled beautifully under the light, revealing its star-like effect.