(a.) Having elevations or depressions in form like one half of a bivalve shell; -- applied principally to a surface produced by fracture.
Example Sentences:
(1) Those differences can be summarized as follows: (1) the occurrence of pronounced, highly curved hackle marks, which could in many instances be mistaken for conchoidal marks;(2)the appearance of the beveled edges bordering the cratering on the side opposite origin of force; and (3) a more apparent tendency toward an inverse relationship of muzzle velocity and energy to radial fracture length and degree of curving along crater boundaries.
(2) These figures were assumed to be the very early stage of formation of conchoidal bodies at the LM level, so-called Schaumann bodies.
(3) Their similitude with other reported intracellular calcareous bodies occurring in malakoplakia, infectious orchitis (Michaelis-Guttman' bodies or calcosphaerites), in beryllium granulomas (conchoid bodies) and sarcoidosis (Schaumann bodies) is discussed.
(4) Sclerotic granulomas with giant cells, conchoidal bodies, iron deposition in the pulmonary stroma--all these lung alterations allowed one to establish a diagnosis of lung berylliosis.
(5) Several patterns of calcification were noted including bubbly, plate-like, elongate, and conchoidal forms.
(6) Lung biopsies in the index cases revealed an interstitial infiltration of inflammatory cells and aggregates of conchoid bodies surrounded by multinucleated giant cells.
Obsidian
Definition:
(n.) A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters.
Example Sentences:
(1) ‘The job is fun, but should never be more than 40 hours per week’ Veteran game designer Chris Avellone, now co-owner of Obsidian Entertainment, focuses on downscaling.
(2) In Mesoamerica, the Aztec empire promoted a militaristic state ideology and developed extensive trade networks to secure valued materials, including obsidian and exotic and symbolically powerful materials such as the shimmering, iridescent feathers of the quetzal bird.
(3) The victims are splayed on a column at the top of a pyramid, and a priest cracks their ribcage open with an obsidian knife to pluck out their still-beating hearts.
(4) A method for analysis of Ni concentrations in tissues is described, which involves (a) tissue dissection with metal-free obsidian knives, (b) tissue homogenization in polyethylene bags by use of a "Stomacher" blender, (c) oxidative digestion with mixed nitric, sulfuric, and perchloric acids, and (d) quantitation of Ni by electrothermal atomic absorption spectrophotometry with Zeeman background correction.
(5) It will come in three colours: black, grey and obsidian and goes on sale in 2018.
(6) It’s a fun job, but it shouldn’t be an exploitative one Chris Avellone, Obsidian Entertainment The need to appease both parties can lead to blow-outs.