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A hypothetic radical (C6H4) occurring in certain derivatives of benzene; as, phenylene diamine.

A local division of the people in ancient Athens; a clan; a tribe.

A hydrocarbon obtained by decomposition of certain piperidine derivatives.

A plant that has many, or more than two, cotyledons in the seed. -- Pol`y*cot`y*led"on*ous, a.

Having the villi of the placenta collected into definite patches, or cotyledons.

n one root form, or from many different root forms; polygenetic; -- opposed to Ant: monophyletic.

many columns; -- said of a building, especially of an interior part or court; as, a polystyle hall. -- n.

A colorless gaseous hydrocarbon (C3H6) of the ethylene series, having a garlic odor. It occurs in coal gas, and is produced artificially in various ways. Called also propene.

A prostyle portico or building.

The hypothetical homogeneous cosmic material of the original universe, supposed to have been differentiated into what are recognized as distinct chemical elements.

Having two coalescent cotyledons, as the live oak and the horse-chestnut.

A pycnostyle colonnade.

The plate of bone which forms the posterior end of the vertebral column in most birds; the plowshare bone; the vomer. It is formed by the union of a number of the last caudal vertebræ, and supports the uropigium.

See Pyroxylic, -yl.

Destitute of rays; hence, dark; not illuminated; blind; as, a rayless sky; rayless eyes.

A liquid hydrocarbon, C10H18, of the acetylene series. It is produced artificially.

A form of articulation in which one bone is received into a groove or slit in another.

A mean fellow; a wretch. [Obs.] hak.

To hide; to secrete; to conceal. [Obs.]

[sq. root159.] Skittles. [Obs.]