0 a gradual increase or growth by the addition of new layers or parts:
1 a gradual increase in the amount, level, or value of something:
From the point of view of advanced undergraduate teaching the topic provides an excellent example of the evolution of an orogenic belt by terrane accretion.
The chapter also provides a useful synthesis of the work prior to 2001 on the biological components of the accretion ice.
An accretion disk with vertical structure around a young stellar object is investigated, considering anomalous magnetic viscosity.
For the organizers of the commemoration the oak carried a number of loyalist and patriotic accretions.
They keep growing by condensation, collisional accretion and coagulation.
What one hears is the spatial accretion of the layers into multiple musical gestures in different locations in the 3-space.
Two must describe the usual thermal and viscous modes for accretion disks; the other two modes describe inertial-acoustic modes.
The story that emerges is a gradual accretion of incidents, each carefully considered, often developed through several versions.