Another posts

strike the tent lapid definition scaphopoda examples phragmites definition linear micrometer marco pilo inconsistent antonym leave you in the lurch shilly shally definition define metamere unuseful definition unwavering integrity luminant definition glover stitch larcenous definition hammer shell footling definition destiny villainy between wind and water rug head golan heights definition enthrallment definition jolt synonyms vindicate etymology calescent definition housecleaning definition chock up helpfully definition look through definition suading definition definition of reichstag emission theory enshroud synonym define impassionate



  • Webster's Revised Unabridged Dictionary
    • n Triquetrum (Anat) One of the bones of the carpus; the cuneiform. See Cuneiform.
    • ***
Century Dictionary and Cyclopedia
    • n triquetrum An instrument used by ancient and medieval astronomers for measuring altitudes of heavenly bodies; the parallactic rules of Ptolemy. It consisted of three rods: one vertical, the second jointed to it at the top and carrying sights, the third jointed to the first at the bottom. The second and third were graduated.
    • n triquetrum In anatomy, one of the irregular, often triangular, Wormian bones found in the lambdoid suture of the skull: more fully called os triquetrum, and generally in the plural ossa triquetra.
    • ***
Chambers's Twentieth Century Dictionary
    • n Triquetrum one of the triangular Wormian bones in the lambdoid suture of the skull
    • ***


Webster's Revised Unabridged Dictionary
Chambers's Twentieth Century Dictionary
L. tres, three, -quetrus, prob. a mere formative.