quark

Thân thiện

A chef sprinkles crumbled quark over a fresh salad.

Definition

1. Noun (Physics):

   • A hypothetical, truly fundamental particle that is a constituent of hadrons (such as protons and neutrons). Quarks are elementary particles and a basic building block of matter. They are never found in isolation but always bound together in groups.
   • They are characterized by properties such as flavor (e.g., up, down, strange, charm, bottom, top) and fractional electric charge (either +2/3 or -1/3 of the elementary charge).

2. Noun (Dairy):

   • A type of fresh, unripened cheese with a smooth, soft texture. It is made from pasteurized milk using a starter culture and rennet. It is mild in flavor and often used in cooking, baking, or eaten with fruit.

Examples

• Noun (Physics):
  • A proton is composed of two up quarks and one down quark.
  • Scientists study the interactions between quarks and gluons.
• Noun (Dairy):
  • She used quark to make a delicious cheesecake.
  • For breakfast, I like quark with honey and berries.

Advanced Usage

• In particle physics, quarks are subject to confinement, meaning they cannot be separated from their parent hadron.
• The term "flavor" in physics specifically refers to the types of quarks: up, down, charm, strange, top, and bottom.
• "Quark matter" is a theoretical phase of matter where quarks are not confined within individual particles.

Variants and Related Words

• Quark-gluon plasma (n): A state of matter believed to have existed just after the Big Bang, where quarks and gluons are free.
• Quark star (n): A hypothetical type of compact star composed of quark matter.
• Quarky (adj, informal): Sometimes used to describe something with the characteristics or qualities of quark cheese, such as a mild, fresh taste.

Synonyms

• (Physics): Elementary particle, fundamental particle.
• (Dairy): Fresh cheese, curd cheese, fromage frais.

Related Phrases

• Quark model (n): The classification scheme in particle physics that describes hadrons as combinations of quarks.
• Quark confinement (n): The phenomenon that quarks are never observed in isolation.

Học thuật

Noun

1. fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet
2. (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3
   • quarks have not been observed directly but theoretical predictions based on their existence have been confirmed experimentally

Từ đồng nghĩa

• quark cheese