To form such hardened tissue.
A shining area on the frons of many species of Tabanomorpha (horse flies and relatives).
The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece.
The new formation over the end of a cutting, before it puts out rootlets.
A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use.
To abrade the surface of (something) with sand or sandpaper in order to smooth or clean it.
To blot ink using sand.
To cover with sand.
A beach or other expanse of sand.
A moment or interval of time; the term or extent of one's life (referring to the sand in an hourglass).
"sand in [someone's] eyes" (idiom)
Rock that is ground more finely than gravel, but is not as fine as silt (more formally, see grain sizes chart), forming beaches and deserts and also used in construction.
A sandpiper.
A particle from 62.5 microns to 2 mm in diameter, following the Wentworth scale.
A light beige colour, like that of typical sand.
Of a light beige colour, like that of typical sand.