Another posts

pottering around heliotherapy definition tiny globules sensitive joint vetch well-acquainted etymology chart ship boy definition of steel industry sempervirens definition diacope definition un proportionate in the throes definition follow suit or suite meronymy examples define inducive philopena definition self-complacent fozy definition assassinator definition philemon definition juno bird tyler connolly hair interspace definition polemarch definition lumber jacket rack and pinion definition legist definition ship chandler definition glyburide definition self renewal definition trial lawyer definition stickup man



  • WordNet 3.6
    • n pneumatophore an air-filled root (submerged or exposed) that can function as a respiratory organ of a marsh or swamp plant
    • ***
Webster's Revised Unabridged Dictionary
    • n Pneumatophore (Zoöl) One of the Pneumonophora.
    • ***
Century Dictionary and Cyclopedia
    • n pneumatophore A pneumatocyst, or a structure which supports such a float; especially, the proximal dilatation of the cœnosarc or hydrosome of the Physophoridæ See cuts under Athorybia and Hydroszoa.
    • n pneumatophore An apparatus for supplying a person with oxygen when in a place filled with bad or unwholesome air. It consists of a breathing-bag containing alkali in solid form to absorb the carbonic acid gas breathed out of the lungs, and two steel cylinders filled with oxygen at a pressure of about 1,800 pounds per square inch. The apparatus is used principally for entering coal-mines after explosions. Also pneumatophor.
    • n pneumatophore In phytogeography, a lateral root, submerged or more often exposed to the air, at least periodically, so differentiated as to serve the purpose of respiration; a respiratory root. In submerged pneumatophores the aerating tissue often consists of aërenchyma; in projecting pneumatophores it consists of air-containing cork or cortex. Projecting pneumatophores assume an upright position, due to negative geotropism. An example is presented by the knees of the bald cypress. See knee, 3 .
    • ***


Webster's Revised Unabridged Dictionary
Pneumato-, + Gr. fe`rein to bear


In literature:

Divergent views have been held as to the morphological significance of the pneumatophore.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 2" by Various