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Exam: Cambridge English: C1 Advanced (CAE)

orrery

IPA: /ˈɔːrəri/

KK: /ˈɔrəri/

noun

Definition: A device that represents the solar system, showing how the planets move around the sun using mechanical parts.

Example: The museum had a beautiful orrery that demonstrated the movements of the planets.

orthochromatic

IPA: /ˌɔːrθoʊˈkrɒmətɪk/

KK: /ɔrθoʊˈkrəʊmətɪk/

adjective

Definition: Relating to photography, this term describes a type of film that accurately reproduces colors except for red, allowing for better representation of tones in images.

Example: The photographer used orthochromatic film to capture the landscape without the influence of red hues.

orthodontic

IPA: /ˌɔːrθəˈdɒntɪk/

KK: /ɔrˈθodənˌtɪk/

adjective

Definition: Related to the branch of dentistry that deals with correcting teeth and jaws that are positioned improperly.

Example: She decided to visit an orthodontic specialist to get braces for her misaligned teeth.

orthodoxly

IPA: /ɔːrˈθɒdɒkli/

KK: /ɔrˈθɑdɒksli/

adverb

Definition: In a way that follows traditional beliefs or practices; in a conventional manner.

Example: The community celebrated the holiday orthodoxly, adhering to all the traditional customs.

orthodoxy

IPA: /ˌɔrθəˈdɑksi/

KK: /ɔrˈθədɑksi/

noun

Definition: A set of beliefs or practices that are considered traditional or accepted, especially in religion or philosophy.

Example: Many people follow the orthodoxy of their faith without questioning it.

orthoepic

IPA: /ˌɔːrθoʊˈɛpɪk/

KK: /ɔrˈθoʊɛpɪk/

adjective

Definition: Relating to the correct pronunciation of words.

Example: The teacher emphasized the orthoepic rules of the language during the lesson.

orthoepy

IPA: /ˈɔːrθoʊəpi/

KK: /ɔrˈθoʊəpi/

noun

Definition: The study or practice of how words are pronounced in a language.

Example: In linguistics, orthoepy is important for understanding how words should be spoken correctly.

orthogenesis

IPA: /ˌɔːrθəˈdʒɛnɪs/

KK: /ɔrˈθoʊdʒənɪs/

noun

Definition: A theory in biology suggesting that the evolution of a species is mainly driven by internal factors rather than external influences like natural selection.

Example: The concept of orthogenesis proposes that species evolve in a predetermined direction over time.

orthogenetic

IPA: /ˌɔːrθoʊdʒəˈnɛtɪk/

KK: /ɔrˌθoʊdʒəˈnɛtɪk/

adjective

Definition: Relating to a theory in biology that suggests species evolve in a straight line or in a predetermined direction, rather than through random variation.

Example: The concept of orthogenetic evolution challenges the idea of random mutations in species development.

orthogonal

IPA: /ɔːrˈθɒɡənl/

KK: /ɔrˈθɑgənl/

adjective

Definition: Describing lines or planes that meet at right angles, or relating to concepts in mathematics that involve right angles or perpendicularity.

Example: In geometry, two lines are orthogonal if they intersect at a right angle.

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