see nephritis. interstitial fluid pressure. pressure exerted by the free interstitial fluid; if the pressure is negative this tends to suck fluid out of the vascular system and into the tissue space; if the pressure is greater than the intravascular pressure fluid tends to move out of the tissue space.interstitial pneumonia. see pneumonia.ee nephritis. interstitial fluid pressure. pressure exerted by the free interstitial fluid; if the pressure is negative this tends to suck fluid out of the vascular system and into the tissue space; if the pressure is greater than the intravascular pressure fluid tends to move out of the tissue space.
1 'A catch phrase is a phrase that has caught on, and pleases the populace.' I'll go along with that, provided these substitutions be accepted: 'saying' for 'phrase'; and 'public' for the tendentious 'populace.'. ( 2 Eric Partridge, A Dictionary of Catch Phrases. 3  Routledge, 1986).
Definition of phrase for Students. 1  1 : a group of two or more words that express a single idea but do not form a complete sentence The group of words âout the doorâ in âthey ran out the doorâ is a phrase. 2  2 : a brief expression that is commonly used.