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Exam: Cambridge English: C1 Advanced (CAE)

leptonic

IPA: /lɛpˈtɒnɪk/

KK: /lɛpˈtɒnɪk/

adjective

Definition: Relating to or made up of leptons, which are a type of elementary particle in physics.

Example: The leptonic interactions are fundamental to understanding particle physics.

leptotene

IPA: /ˈlɛp.təˌtiːn/

KK: /ˈlɛp.təˌtin/

noun

Definition: A stage in the first part of cell division where chromosomes become visible as thin threads before they pair up.

Example: During leptotene, the chromosomes start to condense and can be seen under a microscope.

lethal

IPA: /ˈliːθəl/

KK: /ˈliːθəl/

adjective

Definition: Able to cause death or very serious harm.

Example: The snake's venom is lethal to small animals.

noun

Definition: A condition or factor that causes death or is capable of causing death.

Example: The genetic mutation was found to be lethal to the developing embryos.

lethality

IPA: /lɛˈθælɪti/

KK: /lɛˈθælɪti/

noun

Definition: The quality or state of being able to cause death or serious harm.

Example: The lethality of the poison was higher than expected, leading to immediate medical intervention.

lethargy

IPA: /ˈlɛθərdʒi/

KK: /ˈlɛθərdʒi/

noun

Definition: A condition where a person feels very tired, slow, and lacks energy or enthusiasm.

Example: After staying up late, I felt a sense of lethargy that made it hard to concentrate.

leucism

IPA: /ˈljuːkɪzəm/

KK: /ˈluːkɪzəm/

noun

Definition: A condition in animals where there is a reduction in pigmentation, leading to a lighter color than usual, but not completely white like in albinism.

Example: The leucism in the bird made its feathers appear mostly white with some darker spots.

leucocidin

IPA: /luːˈkoʊsɪdɪn/

KK: /lʊˈkoʊsɪdɪn/

noun

Definition: A type of toxin produced by certain bacteria that kills or breaks down white blood cells, which are important for the immune system.

Example: Leucocidin is known to contribute to the virulence of some bacterial infections by destroying the body's white blood cells.

leucoma

IPA: /luˈkoʊmə/

KK: /lʊˈkoʊmə/

noun

Definition: A cloudy or opaque area in the cornea of the eye that can affect vision.

Example: The doctor diagnosed her with a leucoma, which was causing her blurred vision.

leukaemogenesis

IPA: /luːˌkiːməʊˈdʒɛnɪsɪs/

KK: /lʊˌkiːməʊˈdʒɛnɪsɪs/

noun

Definition: The process by which leukaemia develops in the body.

Example: Researchers are studying leukaemogenesis to find better treatments for blood cancers.

leukemogenesis

IPA: /luːˌkiːməˈdʒɛnɪsɪs/

KK: /luːˌkiːməˈdʒɛnɪsɪs/

noun

Definition: The process of causing or developing leukemia, a type of cancer that affects the blood and bone marrow.

Example: Researchers are studying leukemogenesis to find better treatments for leukemia.

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