• WordNet 3.6
    • adj spinous shaped like a spine or thorn
    • adj spinous having spines "the dorsal fin is spinous"
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Webster's Revised Unabridged Dictionary
    • Spinous Having the form of a spine or thorn; spinelike.
    • Spinous Spinose; thorny.
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Century Dictionary and Cyclopedia
    • spinous In zoology and anatomy:
    • spinous Having spines; spiny; spinigerous or spiniferous.
    • spinous Shaped like a spine; spiniform; having the character of a spine; sharp or pointed: as, a spinous process of bone. See spinose.
    • spinous In botany, same as spinose.
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Chambers's Twentieth Century Dictionary
    • adjs Spinous full of spines: thorny
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Chambers's Twentieth Century Dictionary
O. Fr. espine (Fr. épine)—L. spina, a thorn.


In literature:

The horn entered at the anterior superior spinous process of the ilium, involving the parietes and the uterus.
"Anomalies and Curiosities of Medicine" by George M. Gould
Those which spring from the posterior of each arch are the spinous processes.
"A Practical Physiology" by Albert F. Blaisdell
Margin thickened, sometimes spinous above.
"Narrative Of The Voyage Of H.M.S. Rattlesnake, Commanded By The Late Captain Owen Stanley, R.N., F.R.S. Etc. During The Years 1846-1850. Including Discoveries And Surveys In New Guinea, The Louisiade Archipelago, Etc. To Which Is Added The Account Of Mr. E.B. Kennedy's Expedition For The Exploration Of The Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist To The Expedition. In Two Volumes. Volume 1." by John MacGillivray
A burnt scrub full or spinous dead boughs.
"Three Expeditions into the Interior of Eastern Australia, Vol 1 (of 2)" by Thomas Mitchell
This is the Spinous Lizard exhibited by Mr. Gould at the meeting of the Zoological Society in October 1840.
"Journals Of Two Expeditions Of Discovery In North-West And Western Australia, Vol. 2 (of 2)" by George Grey
The spinous process cleft at its extremity.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
It is covered with black spinous bristles from two to three inches long, shortest on the head and limbs.
"Natural History of the Mammalia of India and Ceylon" by Robert A. Sterndale
Armature: applied to the spinous or chitinous processes on the legs, body or wings; or the corneous parts of genitalic structures.
"Explanation of Terms Used in Entomology" by John. B. Smith
Situations of the anterior superior iliac spinous processes.
"Surgical Anatomy" by Joseph Maclise
From the margins of these bases grow spinous processes of nearly three feet in length, which point upward.
"The Forest Exiles" by Mayne Reid

In news:

Alphatec Spine Launches New MIS Device, the BridgePoint Spinous Process Fixation System.