testaceous

Adjective

testaceous (comparative more testaceous, superlative most testaceous)

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 […]1658, Thomas Browne, “(please specify the page)”, in Hydriotaphia, Urne-buriall, […] Together with The Garden of Cyrus, […], London: […] Hen[ry] Brome […], →OCLC
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 […]1665, R[obert] Hooke, Micrographia: Or Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses. […], London: […] Jo[hn] Martyn, and Ja[mes] Allestry, printers to the Royal...
   • 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...1740, John Dyer, “The Ruins of Rome. A Poem.”, in Poems. … Viz. I. Grongar Hill. II. The Ruins of Rome. III. The Fleece, in Four Books, London: Printed by John Hughs, for Messrs. R[obert] and J[ames]...
3. Of a dull orange or brownish colour, like brick.