Staple. A figure like a U inverted; thus,
.
Sudor. Sweat.
Sudoriparous. Of sweat, sweat-yielding.
Sulcus (pl. Sulci). A skin groove or furrow.
Twinned Loop. Two adjoining loops in a core, complementary in position.
Tented Arch. An arch shaped like a tent or volcanic mountain.
Terminus. A term used for distinctive points within and without a core.
Ulnar. The little finger side of the hand. (Opposed to Radial).