testaceous

adj

1. (obsolete)Pertaining to earthenware or baked clay.

   “[T]hey were burnt, or only baked in Oven or Sunne: According to the ancient way, in many bricks, tiles, pots, and testaceous works […]”

2. Having a shell, especially one which is not articulated.

   “It has a very large head, in proportion to its body, all covered with a shell, like other testaceous Animals […]”

   “Tyrian garbs, / Neptunian Albion's high teſtaceous food [i.e., oysters], / And flavour'd Chian wines with incenſe fum'd / To ſlake Patrician thirſt: for theſe, their rights / In the vile ſtreets they proſtitute to ſale; / Their ancient rights, their dignities, their laws, / Their native glorious freedom.”

   “The Ship-VVorm of Jamaica. This inſect is extremely deſtructive to all the ſhips that anchor for any time in the harbours of Jamaica, or in any other part vvithin the tropics: They cut vvith great facility through the planks, and burrovv a conſiderable vvay in the ſubſtance of them, incruſtating the ſides of all their holes vvith a ſmooth teſtaceous ſubſtance[…].”

   “The mollusca, and testaceous animals in particular, have been considered to be of potency in an amatory sense.”

3. Of a dull orange or brownish colour, like brick.