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Exam: GRE (Verbal)

photoionization

IPA: //ˌfoʊtoʊˌaɪənaɪˈzeɪʃən//

KK: /ˌfoʊtoʊˌaɪənaɪˈzeɪʃən/

noun

Definition: The process in which an atom or molecule loses an electron after absorbing light, resulting in the formation of ions.

Example: Photoionization is an important process in astrophysics and atmospheric chemistry.

photoionize

IPA: //ˌfoʊtoʊˈaɪənaɪz//

KK: /ˈfoʊtoʊˌaɪəˌnaɪz/

verb

Definition: To cause an atom or molecule to lose an electron due to exposure to light or electromagnetic radiation.

Example: The intense light from the laser can photoionize the gas, creating charged particles.

photoionized

IPA: //ˌfoʊtoʊˈaɪənaɪzd//

KK: /ˈfoʊtoʊˌaɪənaɪzd/

adjective

Definition: Describing something that has been affected or created by the process of photoionization, where light energy causes atoms or molecules to lose electrons.

Example: The photoionized gas emitted a bright glow when exposed to ultraviolet light.

verb

Definition: To cause an atom or molecule to lose an electron due to the absorption of light or electromagnetic radiation.

Example: The gas was photoionized by the intense ultraviolet light from the star.

photoionizing

IPA: //ˌfoʊtoʊˈaɪənaɪzɪŋ//

KK: /ˈfoʊtoʊˌaɪənaɪzɪŋ/

adjective

Definition: Relating to a process that causes atoms or molecules to lose electrons due to the absorption of light.

Example: The photoionizing radiation from the star affects the surrounding gas clouds.

photokinesis

IPA: //ˌfoʊtəʊkɪˈniːsɪs//

KK: /fōtōkəˈnēsə/

noun

Definition: Movement or activity that occurs in response to light.

Example: The plant showed photokinesis by bending towards the sunlight.

photokinetic

IPA: /ˌfoʊtəʊkɪˈnɛtɪk/

KK: /fōtōkəˈnētik/

adjective

Definition: Relating to the movement of organisms in response to light.

Example: The photokinetic response of the plant allows it to grow towards the sunlight.

photolysis

IPA: //foʊˈtɒlɪsɪs//

KK: /foʊˈtɑːlɪsɪs/

noun

Definition: The process in which a chemical compound breaks down into simpler substances when exposed to light or radiant energy.

Example: Photolysis is essential for photosynthesis, as it helps to split water molecules.

photolytic

IPA: //ˌfoʊtəˈlɪtɪk//

KK: /fōˈtōlɪtɪk/

adjective

Definition: Relating to the process of breaking down substances using light, especially in chemical reactions.

Example: The photolytic reaction in plants helps convert sunlight into energy.

photolytically

IPA: /ˌfoʊtəˈlɪtɪkli/

KK: /fōˈtōlɪtɪkli/

adverb

Definition: In a way that involves the process of breaking down substances using light energy.

Example: The chemical reaction occurred photolytically, leading to the formation of new compounds.

photolyze

IPA: //ˈfoʊtəˌlaɪz//

KK: /fōˈtälˌīz/

verb

Definition: To cause a chemical reaction in a substance by using light, typically breaking it down into simpler components.

Example: The scientist used ultraviolet light to photolyze the chemical compound in the experiment.

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