fissure(redirected from Inferior orbital fissure)
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Related to Inferior orbital fissure: foramen ovale, Foramen lacerum, Pterygomaxillary fissure, infraorbital canal, infraorbital foramen, Infraorbital groove
1. A long narrow opening; a crack or cleft.
2. The process of splitting or separating; division.
3. A separation into subgroups or factions; a schism.
4. Anatomy A normal groove or furrow, as in the liver or brain, that divides an organ into lobes or parts.
5. Medicine A break in the skin, usually where it joins a mucous membrane, producing a cracklike sore or ulcer.
intr. & tr.v. fis·sured, fis·sur·ing, fis·sures
To form a crack or cleft or cause a crack or cleft in.
[Middle English, cut, from Old French, from Latin fissūra, from fissus, split; see fissi-.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. any long narrow cleft or crack, esp in a rock
2. a weakness or flaw indicating impending disruption or discord: fissures in a decaying empire.
3. (Anatomy) anatomy a narrow split or groove that divides an organ such as the brain, lung, or liver into lobes. See also sulcus
4. (Medicine) a small unnatural crack in the skin or mucous membrane, as between the toes or at the anus
5. (Dentistry) a minute crack in the surface of a tooth, caused by imperfect joining of enamel during development
to crack or split apart
[C14: from medical Latin fissūra, from Latin fissus split]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
n., v. -sured, -sur•ing. n.
1. a narrow opening produced by cleavage or separation of parts.
3. a natural division or groove in an anatomical organ, as in the brain.v.t.
4. to make fissures in; cleave; split.v.i.
5. to open in fissures; become split.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A long, narrow crack or opening in the face of a rock. Fissures are often filled with minerals of a different type from those in the surrounding rock.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Past participle: fissured
Collins English Verb Tables © HarperCollins Publishers 2011
A split or groove.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
Switch to new thesaurus
|Noun||1.||fissure - a long narrow depression in a surface|
|2.||fissure - a long narrow opening |
chap - a crack in a lip caused usually by cold
crevasse - a deep fissure
fatigue crack - a crack in metal resulting from metal fatigue
faulting, geological fault, fracture, break, fault, shift - (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other; "they built it right over a geological fault"; "he studied the faulting of the earth's crust"
opening, gap - an open or empty space in or between things; "there was a small opening between the trees"; "the explosion made a gap in the wall"
rift - a narrow fissure in rock
slit - a narrow fissure
split - a lengthwise crack in wood; "he inserted the wedge into a split in the log"
|3.||fissure - (anatomy) a long narrow slit or groove that divides an organ into lobes|
sulcus - (anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain
hilum, hilus - (anatomy) a depression or fissure where vessels or nerves or ducts enter a bodily organ; "the hilus of the kidney"
|Verb||1.||fissure - break into fissures or fine cracks|
crack - cause to become cracked; "heat and light cracked the back of the leather chair"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
noun crack, opening, hole, split, gap, rent, fault, breach, break, fracture, rift, slit, rupture, cleavage, cleft, chink, crevice, cranny, interstice There was a great crack, and a fissure opened up.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
1. A usually narrow partial opening caused by splitting and rupture:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
fissure[ˈfɪʃər] n → fissure f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
n. fisura. V.: cleft
English-Spanish Medical Dictionary © Farlex 2012
fissuren fisura; anal — fisura anal
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.