Search the Dictionary

Wedge-shaped; as, a sphenoid crystal.

A sharp, narrow spade, usually with a long handle, used by farmers for digging up large-rooted weeds; a similarly shaped implement used for various purposes. My spud these nettles from the stone can part. Swyft.

An artificial dyestuff obtained as an orange-yellow powder, and regarded as a phenyl hydrazine derivative of tartaric and sulphonic acids.

A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium.

yellow, and has a black crescent on the breast. Called also white-throated thickhead, orange-breasted thrust, black-crowned thrush, guttural thrush, and black-breasted flycatcher.

A name given to any one of a series of orange-red dyestuffs produced artificially from certain complex sulphonic acid derivatives of azo and diazo hydrocarbons of the aromatic series; -- so called because of the general resemblance to the shades of nasturtium (Tropæolum).

asoniades, glaucus. The wings are yellow, margined and barred with black, and with an orange- red spot near the posterior angle of the hind wings. Called also tiger swallowtail. See Illust. under Swallowtail.

and handsome American butterfly (Basilarchia, or Limenitis, archippus). Its wings are orange-red, with black lines along the nervures and a row of white spots along the outer margins. The larvæ feed on willow, poplar, and apple trees.

nt (Pistia stratiotes) which floats on tropical waters, and forms a rosette of spongy, wedge-shaped leaves. J. Smith (Dict. Econ. Plants).

A friction gear wheel with wedge-shaped circumferential grooves. -- Wedge gearing.

An Australian crested insessorial bird (Sphenostoma cristatum) having a wedge-shaped bill. Its color is dull brown, like the earth of the plains where it lives.

Like a wedge; wedge-shaped.

The large-mouthed black bass. See Black bass. [Southern U. S.]

ive lead molybdate occurring in tetragonal crystals, usually tabular, and of a bright orange-yellow to red, gray, or brown color; -- also called yellow lead ore.

he action of hot nitric acid on albuminous or proteid matter. It is changed to a deep orange- yellow color by the addition of ammonia.

An orange-yellow substance found in pigment spots of certain crabs.

Native zinc oxide; a brittle, translucent mineral, of an orange-red color; -- called also red zinc ore, and red oxide of zinc.