The Manual of Heraldry; Fifth Edition / Being a Concise Description of the Several Terms Used, and Containing a Dictionary of Every Designation in the Science

by Anonymous

DOUBLE TRESSURE. Two Tressures, or orles, one within the other.

DOVETAILED. A term borrowed from carpentry to show tinctures joined together by reversed wedges, which, being shaped like doves' tails, are by joiners called dovetailing.

Ex. Quarterly per pale dove-tailed, or and gules.

DRAGON.. An imaginary monster; a mixture of beast, bird, and reptile. It is frequently borne in crests and charges.

Ex. Argent, a dragon proper, tail nowed.

DRAGON'S HEAD. Part of a celestial constellation, used by ancient English heralds to denote tenne when emblazoning the arms of sovereigns; this style of heraldry has become obsolete.

DRAGON'S TAIL. Part of the same constellation; formerly used to denote sanguine.