sharp spiral in a sentence

• A number of sharp spiral threads, which, however, are interrupted, on the costae.
• If a lucky participant actually holds onto a Leinart's sharp spiral, he gets to prance around on the Coliseum lawn, even perform an end-zone dance.
• Fiske determined that the notional torpedo bomber should descend rapidly in a sharp spiral to evade enemy guns, then when about above the water the aircraft would straighten its flight long enough to line up with the torpedo's intended path.
• On the base below the carina there are four narrow and sharp spirals, followed by about eight, which are broader and flattened, and within these is one stronger than the rest, with about sixteen rounded beads, which crenulate the edge of the umbilicus.
• There may be three sharp spirals on each of the four spire-whorls in a shell 8 mm . long, or two on the first and second spire-whorls, an intercalated third thread on the third whorl, and three on the fourth whorl.
• "Sturia " produced a robust, laterally compressed, high whorled, involute shell; whorls strongly embracing . the surface is without ribs or constructions but does have sharp spiral lines . the suture is ammonitic, deeply digitate; lobes and saddles narrowly V-shaped overall.
• The most obvious differences are, that in " I . pharcida " the ribs and their intersecting sharp spirals are as strong on the body whorl as on the others, in " Inodrillia acrybia " the ribs on the last whorl are obsolete and the spirals fainter.
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