English Reference
noun

cleavage

n.
US /ˈkɫivədʒ/ UK /klˈiːvɪdʒ/ cleav·age UK spelling cleavages

  1. 01 B2 Upper Intermediate

    the space between a woman's breasts, especially when visible above a low-cut dress.

    the hollow or separation between a woman's breasts, typically as revealed by a low neckline.

    Simple

    She wore a dress with a low neckline that showed some cleavage.

    In context

    The fashion editor noted that the gown's plunging neckline was designed to accentuate the model's cleavage without appearing overly provocative.

    Usage

    Usually uncountable in this sense.

  2. 02 C1 Advanced AcademicFormal Law

    a sharp division or disagreement between different groups of people.

    a sharp division or split between groups, particularly regarding voting patterns, social classes, or political ideologies.

    Simple

    There is a clear cleavage between urban and rural voters in this election.

    In context

    The political scientist argued that the primary cleavage in the country was no longer based on class but on educational attainment.

    Teacher's tip

    In political science, this refers to a deep and lasting social division that creates a stable voting bloc.

  3. 03 C1 Advanced Technical Science

    the way a cell splits into smaller cells after it has been fertilized.

    the series of rapid mitotic cell divisions that transform a zygote into a multicellular embryo.

    Simple

    The scientist watched the early stages of cell cleavage under the microscope.

    In context

    During the initial stages of embryonic development, cleavage occurs without any significant increase in the total volume of the cytoplasm.

    Usage

    Often used as an uncountable noun in biological contexts.

  4. 04 C2 Proficiency Technical Science

    the way a rock or crystal naturally breaks along flat surfaces.

    the tendency of a mineral or crystal to break along definite planes of structural weakness.

    Simple

    Diamonds have perfect cleavage, which means they can be split easily in certain directions.

    In context

    The geologist identified the specimen by observing its perfect cubic cleavage and distinctive metallic lustre.


From cleave + -age.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated