nacreous


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Related to nacreous: Nacreous clouds, nacreous layer

nacreous

[′nā·krē·əs]
(optics)
Having an iridescent luster resembling that of mother-of-pearl. Also known as pearly.
References in periodicals archive ?
Some keshi (small irregular-shaped nacreous but nonnucleated pearls that form during the culture time after nuclei have been rejected) could also be harvested, but not graded.
The phases of the sample were identified using X-ray diffraction (XRD) and results indicated that aragonite was detected in the nacreous layer, calcite was detected in the prismatic layer (Figure 3).
He chose few and far between colours for his palette, using enamels having a various degree of transparency on a white lead ground, without resorting to the use of gold or nacreous shades.
Caillat begins scaling, putting the fish in a boatside machine that whirls them around and around and sends water and nacreous scales out onto the pier where they leave a slippery film and create little rainbows in the light.
Internal growth annuli were defined as areas of discontinuity of the prismatic layer that extended from the nacreous layer to the periostracum (Fig.
The rarely shown, misconceived 1967 film version of A Midsummer Night's Dream provides an equally mesmerizing reminder of how stunning she could be even in repose; as Titania the twenty-three-year-old Farrell had an inner glow as nacreous as Marilyn Monroe's.
The reaction products gave opaque materials with a pearl-like color effect that showed "a decreased sensitivity to shock, greater moldability and flexibility, enhanced machining, and nacreous color effects" (36).
Who isn't moved by images of the Earth floating like a nacreous blue orb in a deep void of velvety black?
But it is the aragonite form found in the inner, nacreous layer that makes the shell remarkably resistant to breakage.
Pearl sac epithelia secrete various shell matrix proteins, which are responsible for secreting nacre and the nacreous layers (Fougerouse et al.
A mesmerizing field of nacreous butterfly wings lacquered with ordinary gloss, Damien Hirst's Kingdom of the Father, 2007, makes a monumental, gothic triptych of its specimens.
12 ridge-like denticles, one where basal portion of lip joins columella frequently larger, with a shallow notch separating it from columella tooth; an additional small granule is usually present just external to this notch; exterior of outer lip thickened subterminally but not distinctly varixed; interior nacreous, deeper region lacking in-running ridges, but cords of outer surface showing through.