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 medium

niche

(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.]

niche

the sum of the characters that determine the position of an organism in its ECOSYSTEM. This includes all the chemical, physical, spatial and temporal factors required for the survival of that species and which limit its distribution and growth. A niche is characteristic of a SPECIES, and no two species occupy the same niche in the same environment in each others’ presence. However, a different species may occupy the same niche in the absence of the normal occupant from that habitat.
References in periodicals archive ?
The nicher serves a specific market that the others don't or can't serve.
480).(31) "Sham liberty, sham monarchy, sham glory, sham justice,--ou diable donc la verite va-t-elle se nicher?" Language is as bankrupt as Becky.
NCP would be considered a strong market challenger (not, the market leader) in CARC systems, while Hentzen is a market nicher and Deft is a market challenger in the aerospace coatings market.
(19.) Il s'agit bel et bien d'interpenetration: si Ronsard, au sonnet 72, s'imagine le sexe feminin comme un "paradis, ou mon plaisir se niche," le sonnet 6 presente un poete au sein duquel lea beautes de Cassandre "[f]irent nicher Amour"; qui fit eclore, au terme de "[n]euf mois entiers," '[m]ille Amoureaus," Le celebre "sonnet des metamorphoses" presente de meme une Europe qui, avant d'etre ravie par le doux taureau, elle-meme "va fleur mille fleurs ravissant" (Sonnet 20, v.
De toutes les femelles qui avaient commence a nicher a Windy Lake en 1988 et 1989, 53 p.
Non, il n'y aura certainement plus de bals de flamants roses, les oiseaux migrateurs hesiteront a se poser pour nicher, se refaire une sante dans ce desert de sel....Un tresor est en voie de disparition, sans doute....Les oiseaux iront se faire voir ailleurs.
Au cours des 10 annees d'etude intensive (1974-77 et 1984-89), il y en a eu trois pendant lesquelles les bernaches cravants n'ont pas essaye de nicher (1974, 1986, 1988); par contre, elles ont niche toutes les autres annees et ont reussi a elever des oisons jusqu'a l'age d'envol au moins quatre de ces annees.
Tenders are invited for construction of community toilet including sanitary plumbing and electrification works, septic tank, and ring well at tilak nicher basti ward no06 under swacch bharat mission within d.M.C area.