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snecked

snecked, ppl. a. Building.
  (snɛkt)
  [app. f. sneck n.1]
  Built of squared stones, but of different sizes and not laid in regular courses.

1883 Specif. Alnwick & Cornhill Rlwy. 48 The abutments,..foundations and parapets are to be constructed in accordance with the General Specification for Snecked or Fitted Rubble. 1883 Alnwick Mercury 17 Nov. 2 The building is of snecked walling.

Oxford English Dictionary

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