n A structure of hexagonal cells made by bees primarily of wax, to hold their larvae and for storing the honey to feed the larvae and to feed themselves during winter.
n Any structure resembling a honeycomb.
n (context|construction)voids left in concrete resulting from failure of the mortar to effectively fill the spaces among coarse aggregate particles.
n (aviation) Manufactured material used manufacture light, stiff structural components using a sandwich design.
n (context|solar cell) texturing the surface of a cell to increase its surface area and capture more sun. http://www.renewableenergyworld.com/rea/blog/post/2009/07/creating-not-overly-disruptive-changes-in-solar-manufacturing?cmpid=WNL-Friday-July17-2009
v To riddle something with holes, especially in such a pattern.