Tetralogy of Fallot is a birth defect that affects normal blood flow through the heart. It happens when a babyâs heart does not form correctly as the baby grows and develops in the motherâs womb during pregnancy. It is a congenital defect, meaning the baby is born with it.Tetralogy of Fallot is made up of the following four defects of the heart and its blood vessels: 1  A hole in the wall between the two lower chambersâor ventricles âof the heart. 2  This condition also is called a ventricular septal defect.t is a congenital defect, meaning the baby is born with it. Tetralogy of Fallot is made up of the following four defects of the heart and its blood vessels: 1  A hole in the wall between the two lower chambersâor ventricles âof the heart. 2  This condition also is called a ventricular septal defect.
A drey â or dray â is a nest of a tree squirrel or a flying squirrel. Dreys are usually built of twigs, dry leaves, and grass, and typically assembled in the forks of a tall tree.They are sometimes referred to as âdrey nestsâ to distinguish them from squirrel âcavity nestsâ (also termed âdensâ).quirrels may also nest in attics or exterior walls of buildings, where a drey may be regarded as a fire hazard, as some squirrels have a habit of gnawing on electrical cables. At other times, squirrels may inhabit a permanent tree den in the hollow of a trunk or large branch.
Dickey (garment) A dickey (alternatively written as dickie or dicky;[1] sometimes known in American English as a tuxedo front or tux front) is a type of false shirt-front - originally known as a detachable bosom - designed to be worn with a tuxedo or men's white tie, usually attached to the collar and then tucked into the waistcoat or cummerbund.