occludedadj.
/əˈkluːdᵻd/, U.S. /əˈkludəd/ 1. That has been occluded.
ΘΚΠ
the world > space > relative position > closed or shut condition > [adjective] > closed or shut > closed or blocked up > obstructed
gorged?a1513
obstructed1611
embarrassed1698
choked1699
occluded1802
blocked1856
obturated1876
the world > matter > gas > [adjective] > absorbed
occluded1866
1802 W. Paley Nat. Theol. xvi. 302 The opening of this occluded mouth.
1866 T. Graham in Philos. Trans. (Royal Soc.) 156 424 The volume of occluded hydrogen is much larger than in the fused platinum.
1882 R. A. Proctor Familiar Sci. Stud. 52 Some meteors carry many times their own volume of occluded gas.
1914 Morning Post 26 Jan. 2/5 Those who really understand the larger and more occluded issues of English literature.
1959 G. Paley Little Disturbances of Man 179 I have an occluded lachrymal duct.
1991 Vanity Fair (N.Y.) Sept. 250/1 A small, hard-drinking, southern writer, a Catholic convert, witheringly smart, with an occluded past, sadness among the magnolias.
2001 Jrnl. Alloys & Compounds 319 312 Amounts of occluded hydrogen in palladium-containing NaY zeolites increased with the palladium content.
2. Meteorology. Designating a front or frontal system at which occlusion has occurred.
ΘΚΠ
the world > the earth > weather and the atmosphere > movements and pressure conditions > [adjective] > cold having overtaken warm front
occluded1922
1922 J. Bjerknes & H. Solberg in Geofysiske Publikationer 3 4 The remaining part of the warm sector near the centre also disappears fairly soon, so that the cyclone on the ground only consists of cold air... For this type we have chosen the name ‘occluded cyclones’.
1934 D. Brunt Physical & Dynamical Meteorol. xviii. 324 When a depression has become occluded, the cold front trails behind the depression.
1955 W. J. Saucier Princ. Meteorol. Anal. ix. 270/1 The cold front overtakes the warm front, resulting in an occluded front (or occlusion).
1970 F. W. Cole Introd. Meteorol. xii. 266 If an occluded front is well advanced in development, the warm-front portion may have little or no effect on the ensuing weather.
1997 Independent 19 Sept. (Eye section) 30/2 When a cold front catches up with a warm front, we get an occluded front, which is when the weather map begins to look really messy.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
<
adj.1802