- An opaque cryptocrystalline variety of quartz that may be red, yellow, or brown.
- Among the ancients, a bright-colored chalcedony (not, however, including carnelian), translucent and varying in color, green being apparently most common. It was highly esteemed as a precious stone.
- In modern usage, a closely compact crypto-crystalline variety of quartz, opaque or nearly so, and colored red, yellow, or brown, or less often green.
- An earthenware made of pounded spar.
- Same as <internalXref urlencoded="jasper-ware">jasper-ware</internalXref>.
- Same as <internalXref urlencoded="jasperize">jasperize</internalXref>.
- An opaque, impure variety of quartz, of red, yellow, and other dull colors, breaking with a smooth surface. It admits of a high polish, and is used for vases, seals, snuff boxes, etc. When the colors are in stripes or bands, it is called <stype>striped jasper</stype> or <stype>banded jasper</stype>. The Egyptian pebble is a brownish yellow jasper.
- a yellow variety of opal resembling jasper.
- a delicate kind of earthenware invented by Josiah Wedgwood. It is usually white, but is capable of receiving color.
- Any bright-coloured kind of <xref>chalcedony</xref> apart from <xref>cornelian</xref>.
- An <xref>opaque</xref>, impure variety of <xref>quartz</xref>, of red, yellow, and other dull colors, breaking conchoidally with a smooth surface.
- <xref>Jasperware</xref> pottery.
- A <xref>wasp</xref>. (West Country dialects, Somerset County)
- A person, a guy, especially seen as naïve or simple.
- an opaque form of quartz; red or yellow or brown or dark green in color; used for ornamentation or as a gemstone