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Exam: TOEFL

option

IPA: /ˈɒpʃən/

KK: /ˈɑpʃən/

noun

Definition: A choice or alternative that can be selected from a set of possibilities.

Example: You have the option to choose between two different courses.

transitive verb

Definition: To choose or select something from a range of possibilities.

Example: The team decided to option the player to the minor leagues for more experience.

optional

IPA: /ˈɒpʃənl/

KK: /ˈɑpʃənl/

adjective

Definition: Not required; something that can be chosen or done if desired, but is not necessary.

Example: The extra credit assignments are optional for students who want to improve their grades.

optionality

IPA: /ˌɒpʃəˈnælɪti/

KK: /ɑpˈʃənlɪti/

noun

Definition: The quality or state of having choices or options available.

Example: The optionality of the investment allowed her to choose different paths for her money.

optionally

IPA: /ˈɒpʃənəli/

KK: /ˈɑpʃənəli/

adverb

Definition: In a way that is not required or compulsory; something that can be chosen or done if desired.

Example: You can optionally include your phone number on the form.

optoelectronic

IPA: /ˌɒptəʊɪˈlɛktrɒnɪk/

KK: /ˌɑːptoʊɪˈlɛktrɒnɪk/

adjective

Definition: Relating to technology that combines light (optical) and electronic components, often used in devices like sensors and lasers.

Example: The optoelectronic device converts light signals into electrical signals.

optoelectronics

IPA: /ˌɒp.təʊ.ɪˈlɛk.trɒ.nɪks/

KK: /ɑːpˌtoʊɪˈlɛktrɒnɪks/

noun

Definition: A field of science that studies how light and electricity interact and can be converted into each other.

Example: Optoelectronics is essential for the development of devices like lasers and solar cells.

optometric

IPA: /ˌɒp.təˈmɛ.trɪk/

KK: /ɑpˈtɒmɛtrɪk/

adjective

Definition: Related to the field of optometry, which is the practice of examining and treating vision problems and eye diseases.

Example: She decided to pursue a career in optometric science to help people with their vision.

optometrist

IPA: /ɒpˈtɛmɪstrɪst/

KK: /ɑpˈtɛmɪstrɪst/

noun

Definition: A professional who examines eyes to find vision problems, diagnoses issues, and prescribes glasses or other treatments.

Example: I need to see an optometrist for my eye exam.

optometry

IPA: /ɒpˈtɒmətri/

KK: /ɑpˈtɑmətri/

noun

Definition: The profession that focuses on examining eyes, diagnosing vision problems, and providing corrective lenses or treatments.

Example: She decided to study optometry to help people see better.

optronic

IPA: /ɒpˈtrɒnɪk/

KK: /ɑːpˈtrɒnɪk/

adjective

Definition: Relating to devices that combine optical and electronic components, often used in technology for processing light signals.

Example: The new optronic sensors are capable of detecting light in various wavelengths.

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