interstitium

From Latin interstitium, from inter (“between”) + sistō (“to stand, place”).

• IPA^(key): /ˌɪntɚˈstɪʃi.əm/

• Audio (Southern England):

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interstitium (plural interstitia)

1. (medicine) An interstitial space within a tissue or organ.
2. (medicine) Specifically the tissue between the pulmonary alveoli and the bloodstream.
3. (philosophy) A state between systems or spaces.
4. An interstice, the interval of time required by the Roman Catholic Church between the attainment of different degrees of an order (pluralised as interstitia for the overall policy, which is also occasionally spelled instertitia).

• interstice
• interstitial
• interstition

From intersistō + -ium.

• (Classical Latin) IPA^(key): [ɪn.tɛrˈstɪ.ti.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [in.terˈstit.t͡si.um]

interstitium n (genitive interstitiī or interstitī); second declension

1. gap, interval
2. interstice

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• “interstitium”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “interstitium”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• interstitium in Ramminger, Johann (16 July 2016 (last accessed)), Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700‎^[1], pre-publication website, 2005-2016