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Christmas Tree Pattern
(redirected from Chevron Pattern)

   Also found in: Dictionary/thesaurus, Encyclopedia 0.01 sec.
Christmas Tree Pattern
Dermatology A finding in pityriasis rosea; the lesions are oval, 1-cm pink-brown papules, covered by fine keratinaceous scales, which correspond to parakeratosis, and aligned parallel to the skin cleavage lines of the trunk; lesions fade after 2-12 wks
Molecular biology Feathering pattern A descriptor for the ultrastructural pattern—seen by the technique of rotary shadowing after gene activation by DNA polymerase—when multiple pre-rRNAs simultaneously initiate transcription on a single DNA molecule. Each of the feather’s ‘branches’ corresponds to chains of nascent rRNA which are progressively shorter towards the initiation site


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Also, to make sure that the chevron pattern is fully visible, PennDOT has moved the salt "pre-wetting" tank between the truck's cab and body.
One wore a baseball cap with a distinctive emblem on the peak, and another had a chevron pattern on the hood of his jacket.
We painted the tabletops with a chevron pattern using a stencil fashioned from 1-and 2-in.
 
 
 
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