Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Bent at the end like a hook.
from The Century Dictionary.
- Hooked or crooked; hooked at the end; forming a hook; unciform. Also
uncate . - The anterior extremity of the hippocampal gyrus. See cuts under cerebral, gyrus, and sulcus.
- noun An uncinate sponge-spicule.
- noun An uncinate process (processus uncinatus), such as is found on the ribs of birds and crocodiles.
from the GNU version of the Collaborative International Dictionary of English.
- adjective Hooked; bent at the tip in the form of a hook.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective botany
Hooked at the end. - adjective anatomy hooked in appearance.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The angle of junction of the lower and left lateral borders forms a prolongation, termed the uncinate process.
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Her study focused on a bundle of fibers known as the uncinate fasciculus, which connects an emotion-processing area known as the amygdala, at the bottom of the brain, with a regulatory area known as the orbital prefrontal cortex, at the front of the brain.
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Lower arrows point to complete removal of the left and right uncinate processes of the third cervical vertebrae suggestive of complete severance of the spinal column leading to full decapitation (HK43 Burial 350).
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Microraptor/Cryptovolans has an uncinate process on its ribs which is present in all modern birds, but missing in Archaeopteryx as far as I know.
New Archaeopteryx fossil provides further insight into bird, dinosaur evolution - The Panda's Thumb 2005
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They are serially homologous with, for example, the uncinate processes of the ribs in birds (see Figs. 5 and 6).
Form and Function A Contribution to the History of Animal Morphology
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A curved lamina, the uncinate process, projects downward and backward from this part of the labyrinth; it forms a small part of the medial wall of the maxillary sinus, and articulates with the ethmoidal process of the inferior nasal concha.
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The hiatus semilunaris is bounded inferiorly by the sharp concave margin of the uncinate process of the ethmoid bone, and leads into a curved channel, the infundibulum, bounded above by the bulla ethmoidalis and below by the lateral surface of the uncinate process of the ethmoid.
X. The Organs of the Senses and the Common Integument. 1b. The Organ of Smell 1918
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Below the bulla ethmoidalis, and partly hidden by the inferior end of the uncinate process, is the ostium maxillare, or opening from the maxillary sinus; in a frontal section this opening is seen to be placed near the roof of the sinus.
X. The Organs of the Senses and the Common Integument. 1b. The Organ of Smell 1918
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Behind this process a broad, thin plate, the ethmoidal process, ascends to join the uncinate process of the ethmoid; from its lower border a thin lamina, the maxillary process, curves downward and lateralward; it articulates with the maxilla and forms a part of the medial wall of the maxillary sinus.
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In the articulated skull this aperture is much reduced in size by the following bones: the uncinate process of the ethmoid above, the ethmoidal process of the inferior nasal concha below, the vertical part of the palatine behind, and a small part of the lacrimal above and in front (Figs. 158, 159); the sinus communicates with the middle meatus of the nose, generally by two small apertures left between the above-mentioned bones.
hernesheir commented on the word uncinate
uncinal, unciform
December 27, 2010