Science / Geology / Rounding: The degree to which the edges and corners of a particle become worn and rounded as a result of abrasion during transportation. Expressed as angular, subrounded, well-rounded, etc.


Entertainment / Literature / Unrounding: The process of changing from a rounded vowel to a spread vowel. For instance, in the vowel u, Chaucer would have pronounced the letter as in the word full. By the 1500s, that sound changed to become t MORE


Science / Chemistry / Surroundings: In thermodynamics, the surroundings refer to the universe outside the system. MORE

Intentional Grounding

Entertainment / Football / Intentional Grounding: A type of illegal forward pass; thrown without an intended receiver and no chance of completion to any offensive player, for the sole purpose of conserving time or loss of yardage. This foul costs the MORE

Microprism Collar

Entertainment / Photography / Microprism Collar: Is a grid type ring found in the center of a camera focusing screen, usually surrounding a split image screen. MORE

Ambient Light

Technology / Digital Cameras / Ambient Light: The natural light in a scene. MORE

Promethium (Pm)

Science / Periodic Table of Elements / Promethium (Pm): Atomic number: 61, Atomic mass: (147) g.mol -1, Electronegativity: unknown, Density: 6.475 at 20°C, Melting point: 1168 °C, Boiling point: 2460 °C, Vanderwaals radius: unknown, Ionic radius: MORE