conchoidal


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con·choi·dal

(kon-koy'dăl),
Shaped like a shell; having alternate convexities and concavities on the surface.
[concha + G. eidos, appearance]

conchoidal

(kŏng-koy′dăl) [″ + eidos, form, shape]
Shell-shaped.

con·choi·dal

(kŏn-koydăl)
Shaped like a shell; having alternate convexities and concavities on the surface.
[concha + G. eidos, appearance]
References in periodicals archive ?
Subparallel linear fracture sets (Figs 7E; 10C-G) as well are mostly related to abrasion during transport in water, while conchoidal surfaces and cavities (Figs 7C, G; 8A, C; 9E) refer to high-energy aquatic transport (Cherian et al.
The clay section becomes increasingly silty near the upper contact with the Naheola Formation, but retains its medium to dark gray color, conchoidal fracture and laminations typical of the Porters Creek lithology.
Platy and conchoidal clods usually are hard and compact, without much scope for entry and exploration by root hairs Features of fracture The incidence of clods with shiny faces faces appears to be associated with a decrease in the strength of inter-aggregate bonding, and of a decrease in aggregate size.
5 Y 8/3) cortex 2-5 mm thick, typical conchoidal fracture and no visible macroscopic defects (FIGURE 3A).
The experiments showed that conchoidal cavities are produced perpendicular to the direction of force applied to the chisel, creating cross-sectional cavities, the size of which depends upon the magnitude of the applied force.
The sheer magnitude of flint in the Danish moraine and the speed at which The Machine operates makes recovery of anything other than conchoidal flakes unlikely.