Definitions
Century Dictionary and Cyclopedia
- n. A barrier; hence, a preventive.
- n. In anatomy, a thickening at the point of the calamus scriptorius in the membrane roofing the fourth ventricle.
Wiktionary
- n. anatomy The point in the human brain at which the fourth ventricle narrows to become the central canal of the spinal cord.
Etymologies
- From Latin ōbex ("barrier, wall"). (Wiktionary)
Examples
“The obex is a thin, triangular, gray lamina, which roofs in the lower angle of the ventricle and is attached by its lateral margins to the clavæ.”
“This maintained divine immutability but had the added bonus of providing symmetry for reprobation and predestination: the determining factor is the presence or absence of an obstacle to grace (obex gratiae).”
“The upper portion of the roof is formed by the superior peduncle and the anterior medullary velum; the lower portion, by the posterior medullary velum, the epithelial lining of the ventricle covered by the tela chorioidea inferior, the tæniæ of the fourth ventricle, and the obex.”
“Below this margin the roof is devoid of nervous matter except in the immediate vicinity of the lower lateral boundaries of the ventricle, where two narrow white bands, the tæniæ of the fourth ventricle (ligulæ), appear; these bands meet over the inferior angle of the ventricle in a thin triangular lamina, the obex.”
“The vertical part is continuous below the obex with the clava, to which it is adherent by its lateral border.”
“The non-nervous part of the roof is formed by the epithelial lining of the ventricle, which is prolonged downward as a thin membrane, from the deep surface of the posterior medullary velum to the corresponding surface of the obex and tæniæ, and thence on to the floor of the ventricular cavity; it is covered and strengthened by a portion of the pia mater, which is named the tela chorioidea of the fourth ventricle.”
“Above it is continuous with the posterior medullary velum; below, with the obex and ligulæ.”
“The 700 µm rhythmic slice extended from this rostral margin to the obex caudally and contained the preBötC, rostral ventral respiratory group, most of the XII motor nuclei and the rostral XII nerve rootlets.”
“Specially added features in the Wii port are: bluetooth (remote control, obex file push, networking and audio partially working), USB storage, USB Ethernet, http / telnet / ftp server, netstreaming, image viewer, goom visuals for audio playback, ....”
“* Bluetooth Device Wizard, to add new Devices (ATM, only input devices) * KBlueLock, to lock your screen, when your mobile phone is out of scope and to unlock when it's back again (currently disabled, due to bluez4 DeviceDisappeared Signal issues) * Send Files to remote devices (obex-data-server) * Receive Files from remote devices (obex-data-server)”
Lists
These user-created lists contain the word ‘obex’.
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SCIE - neurology
abducens.....draw..., ablation.....carr..., acetylcholine......., adrenalin.....nea..., afferent.....to c..., agnosia.....no kn..., alar.....wing-like, alexia.....no words, alveus.....canal, amacrine.....no l..., ambidextrous........, ambiguus.....doub... and 701 more...
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X Marks the Spot
Words ending in "x" (except proper nouns and trademarks)
ax, ex, ox, soapbox, smallpox, six, sex, sax, rex, pressbox, climax, chickenpox and 208 more...
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Words I'd Like to Use Someday
thundersnow, phantasmagoria, mercurial, chimerical, taciturn, paraclete, lapis lazuli, flay, guttersnipe, wonky, misanthrope, kestrel and 583 more...
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Miscellany, pt. o
ophelimity, ovoviviparous, oolith, ooplasm, oozooid, opeidoscope, ookinete, oont, ooxanthine, oocyan, oometry, oorhodeine and 23 more...
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Anatomical Terms
Anatomical terms
folliculus, follicle, tegmentum, labrum, margo, lacertus, ora, corporal, corpus, capital, caput, gula and 86 more...
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brain words
synapse, pons, cerebellum, medulla oblongata, optic chiasm, myelin, hypothalamus, thalamus, telencephalon, diencephalon, mesencephalon, zona incerta and 87 more...
Tweets
Looking for tweets for obex.
she n.¹, An impediment or obstacle; a mental barrier.
n.², (Anatomy) A small, crescentic fold of white matter that covers the inferior angle of the floor of the fourth ventricle. Sep 6, 2008