It is used during daylight hours. The balloon is filled to such degree that its ascent rate is known. By measuring the time period between the start of the balloon and the moment it hides in the cloud can be determined the height of the cloud base.
imbrication lines (imâ³bro brÃ´Â´ika shÉn) , lÄ«nz.n pl. 1 the seams which are formed by overlapping layers of tissue in order to close a surgical. wound. 2 slight mesiodistal ridges in the cervical third of a. tooth
bifurcation. 1. a division into two branches. 2. the point at which division into two branches occurs. Carotid bifurcation: the site of division of the common carotid artery into the external and internal carotid arteries.ifurcation. 1. a division into two branches. 2. the point at which division into two branches occurs. tracheal bifurcation. termination of the trachea, where it divides into two principal bronchi.