Definition of interstitial in English:



  • 1Of, forming, or occupying interstices.

    ‘the interstitial space’
    • ‘The fluid, bending form creates an always-varying interstitial space in the courtyard as it rises to about the height of the existing cornice.’
    • ‘Through the interstitial spaces of those rows, segments of the winding hard-edged lines can be seen.’
    • ‘The public streets will become little more than the interstitial space to these fortified private cores.’
    • ‘Held in place by steel flanges and lined internally with horizontal planks of pine, the segmented lead roof casings curve out and extend down the flanks of the halls, creating interstitial space for escape stairs.’
    • ‘Thus, the analysis should not be unfamiliar to scholars in either Cultural Studies or the Sociology of Sport, for it occupies a largely unmapped interstitial space between the two.’
    • ‘Moreover, the angel creates an interstitial space that seeks to regain the purity of the first garden but benefits from the knowledge of the second and, thereby, transcends both.’
    • ‘Modular panels permit easy access to the interstitial space for rewiring and servicing exhibitions.’
    • ‘Through the forces of adhesion, surface tension, and cohesion, water can be drawn up ward, well above the water table, through very narrow interstitial passageways such as those found in fine soils.’
    • ‘The interstitial space may be occasionally disruptive of hegemonic articulations, but it can also represent the economic and cultural powerlessness of the unwilling migrant.’
    • ‘This interstitial space would become a sliver between the new glassy condo tower and the ‘worth-keeping’ old tower in Lucien Lagrange's design.’
    • ‘This is how the restless energies of the poem construct the door between inside and outside, which is the interstitial space of our real dwelling.’
    • ‘The most important of these interstitial spaces are the gallery vestibules, which are emphasised by lace-like fretwork ceilings.’
    • ‘Without decent wages, too often our populations have to dip into the grey interstitial corners of making a living to survive and to deal with bare versions of what allows human beings to emerge without immense psychic and physical damage.’
    • ‘Both foggy white boxes contain one sealed inner box, flowing interstitial foyer space and, as finale, a single punctured window aligned with one or other of the adjacent hills that cradle San Sebastian.’
    • ‘Within what is essentially an office building, Schultes has created sculptural scenography out of interstitial space.’
    • ‘This fluid then contains cells which were contained in the very small air sacs of the lung, where the inflammation begins in interstitial lung disease.’
    • ‘The interest you see in London with dirt, the abject, and those uncontrollable interstitial spaces is a little mark of resistance against that process.’
    • ‘A major challenge lies, therefore, in crafting interstitial spaces beyond the hegemonic where feminism and popular mobilization can reside.’
    • ‘Sandwiched between old and new facades on south and east is an interstitial space incorporating the original balconies and new stretches of corridor.’
    • ‘While uncertain, this interstitial space of unknowing was refreshing in its dislocation from the daily constraints posed by plantation culture.’
    1. 1.1Ecology (of minute animals) living in the spaces between individual sand grains in the soil or aquatic sediments.
      ‘interstitial fauna’
      • ‘Who knows what other microarthropods are lurking in the sand beneath, interstitial fauna inhabiting the chinks of the world.’
      • ‘All macrodasyids are marine interstitial animals that live between sand grains to which they adhere with the aid of adhesive tubules that are distributed along their whole body.’
      • ‘How important are rotifers to the ecology of springs and soils, interstitial, and periphytic habitats?’
      • ‘The unconsolidated sediments in running water are an important interstitial habitat; in many cases, the interstitial aquatic genera overlap those found in caves.’
      • ‘Other animals such as echinoderms and interstitial worms can attach and let go on a time scale of seconds.’


  • An advertisement that appears while a chosen website or page is downloading.

    • ‘These interstitials will feature one-on-one demos of signature sports ‘moves’ from stars in the worlds of basketball, football, boxing, soccer, golf and wrestling.’
    • ‘On the advertising front, the block will air commercial-free during its first year, with interstitials and promos filling the gaps.’
    • ‘A number of advertisers and websites responded to this by using more aggressive tactics like pop-ups/unders, interstitials, much larger banners, etc.’
    • ‘The skein, an outgrowth of five-minute interstitials that have been airing on the network over the past year, will debut in a monthly, half-hour format in late May or early June.’
    • ‘A dozen interstitials and two games air each day.’