See Also: Tovell tube(medicine)
Tovell, Ralph(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Scanning(medicine)
vq scanning(medicine)
scanning(1)(dictionary)
scanning(2)(dictionary)
Environmental Scanning(money)
linker scanning(medicine)
Nuclear scanning(health)

Tovell tube (medicine) and scanning(1) (iou)


Tovell tube (medicine)


Tovell tube


An armored tracheal tube with a wire spiral embedded in the wall to prevent obstruction of the lumen when the tube is compressed and kinking when the tube is bent at a sharp angle.


scanning(1) (iou)



scanning noun. LME.
[from SCAN verb + -ING1.]
Prosody. = SCANSION 2. LME.
a. Close investigation or consideration, critical examination or judgement; discernment. M16.
b. The action of systematically traversing an object or image with a beam or detector; Medicine the examination of a patient, an organ, etc., using a scanner. E20.
c. The rapid or systematic searching of textual material for particular information or features. M20.
Phrases: auditory scanning the system of echolocation thought to be used by dolphins, whales, etc., for the location and ranging of objects.
Comb.: scanning coil each of four coils around the neck of a cathode-ray tube or scanning electron microscope, which determine the raster pattern traced by the electron beam; scanning disc a rotating disc having a spiral of holes near the edge, used in mechanical systems of Television to provide a sequential scan of a scene by optical means for transmission and reception; scanning electron microscope a form of electron microscope used to examine the surface of a specimen, which is scanned by an electron beam in a raster pattern, and an image derived from the secondary electrons emitted; abbreviation SEM; scanning field = RASTER noun 1; scanning line = LINE noun2 11g; scanning raster: see RASTER noun 1; scanning spot the spot where an incident beam (usu. of electrons or light) strikes the surface it is scanning; scanning transmission electron microscope a microscope similar to the scanning electron microscope, but in which the image is derived from electrons transmitted through the specimen; abbreviation STEM; scanning tunnelling microscope a type of high resolution microscope using neither light nor an electron beam, but with an ultra-fine tip able to reveal atomic and molecular details of surfaces; abbreviation STM.