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Exam: Cambridge English: C2 Proficiency (CPE)

astatic

IPA: /əˈsteɪtɪk/

KK: /ə'stætɪk/

adjective

Definition: Describing something that lacks a specific direction or is unstable, often used in physics to refer to systems that do not have a consistent orientation.

Example: The astatic system was designed to minimize directional bias in the measurements.

astatine

IPA: //ˈæstəˌtaɪn//

KK: /ˈæstəˌtaɪn/

noun

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.

astrolabe

IPA: /ˈæstrəˌleɪb/

KK: /ˈæstrəˌleɪb/

noun

Definition: A historical tool used to measure the position of stars and planets in the sky, helping people understand astronomy and navigation.

Example: The ancient sailors relied on the astrolabe to guide their ships across the ocean.

astronautic

IPA: /ˌæstrəˈnɔtɪk/

KK: /ˈæstrəˌnɔtɪk/

adjective

Definition: Relating to the science and technology of space travel and exploration.

Example: The astronautic achievements of the last decade have expanded our understanding of the universe.

astronautical

IPA: /ˌæstrəˈnɔtɪkəl/

KK: /ˌæstrəˈnɔtɪkəl/

adjective

Definition: Relating to the science and technology of space travel and exploration.

Example: The astronautical engineering program at the university focuses on spacecraft design.

astronomical

IPA: /ˌæstrəˈnɒmɪkəl/

KK: /æstrəˈnɑmɪkəl/

adjective

Definition: Relating to very large sizes or amounts, often used to describe something that is extremely great or immense.

Example: The costs of the project were astronomical, far exceeding our initial budget.

astrophysical

IPA: /ˌæstrəˈfɪzɪkəl/

KK: /æstrəˈfɪzɪkəl/

adjective

Definition: Relating to the branch of astronomy that deals with the physical properties and behavior of celestial bodies and the universe.

Example: The astrophysical phenomena observed in distant galaxies can provide insights into the origins of the universe.

astrophysically

IPA: /ˌæstrəˈfɪzɪkli/

KK: /æstrəˈfɪzɪkli/

adverb

Definition: In a way that relates to the branch of science that deals with the physical properties and phenomena of celestial bodies and the universe.

Example: The stars are studied astrophysically to understand their formation and evolution.

atactic

IPA: /əˈtæktɪk/

KK: /əˈtæktɪk/

adjective

Definition: Describing a type of polymer or macromolecule where the arrangement of its parts is random and lacks a regular structure.

Example: The atactic polymer has a unique property due to its random arrangement of subunits.

ataraxia

IPA: /ˌætəˈræksiə/

KK: /əˈtær.ə.k.si.ə/

noun

Definition: A state of calmness and peace of mind, free from emotional disturbance or anxiety.

Example: After practicing meditation for several months, she finally achieved a sense of ataraxia.

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