double circulation


Also found in: Medical.

double circulation

[¦dəb·əl sər·kyə′lā·shən]
(physiology)
A circulatory system in which blood flows through two separate circuits, as pulmonary and systemic.
References in periodicals archive ?
In the case of amelanotic melanoma or large melanoma that has broken through BruclTs membrane, the double circulation sign is noted (Figure 6).
As part of the new venture, Handheld & Wireless Developers is planning an aggressive marketing campaign to double circulation by the end of 1998.
Many enterprises confuse the end of the transition period and the end on double circulation of national currencies and the Euro, believing this second period will expire on 30 June 2002, when in reality, co-existence will last a maximum of just eight weeks.
The majority of Member States participating in the Euro (all EU Member States except for Denmark, Greece, Sweden and the United Kingdom) have agreed to reduce the period of double circulation to an average of no more than two months.
However, a consensus may be possible on significantly reducing the period of double circulation initially set at a maximum of six months: Member States would appear to be converging towards an average period of between six weeks and two months.
The scenario for the final transition to the single currency provides for a maximum six-month period (January 1 to June 30) for double circulation of national currencies and Euro notes and coins.