niche
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niche
[nich]a small recess, depression or indentation, especially a recess in the wall of a hollow organ that tends to retain contrast media, as revealed by radiographs.
niche
(nitch, nēsh),1. In contrast radiography, an eroded or ulcerated area, especially gastrointestinal or vascular, which can be detected when it fills with contrast medium.
2. An ecologic term for the position occupied by a species in a biotic community, particularly its relationships to various other competitor, predator, prey, and parasite species.
[Fr.]
niche
Imaging A recess which may correspond to an ulcer in the wall of a hollow organ which tends to retain contrast mediumniche
(nich, nēsh)1. radiography An eroded or ulcerated area, especially gastrointestinal or vascular, which can be detected when it fills with contrast medium.
2. An ecologic term for the position occupied by a species in a biotic community, particularly its relationships to various other competitor, predator, prey, and parasite species.
[Fr.]