I think "basic" or "main" not needed. They do NOT google well as either main/basic/base parcel/plot of landand I think the word parcel (which I prefer) or plot includes the idea that this is base land.

as for the "virtual" part


Virtual Land Parcel Area Calculator, Palm Springs, Cathedral City, Palm Desert, La Quinta, Desert Hot Springs, Indio, Thermal, Thousand Palms, Rancho Mirage ...
www.csgnetwork.com/areaparcelcalc.html - Cached - Similar

22 Apr 2011 ... Parcel: Part (or all) of your land that will have the same settings. You can cut you land into multiple parcels . Parcels can be as small as ...
virtualoutworlding.blogspot.com/.../kit-land-parcel-about-land-window.html - Cached

virtual real estate feature when they require permanent ... Additional Land, Parcel Size (m2), Square Equal Line Length (m), Max Prims ...
en.wikipedia.org/wiki/Real_estate_(Second_Life) - Cached - Similar





256x256 virtual metres in size (65536m2). - Ability to split land and 'parcel' to other avatars. - Add Estate managers to share land / manage ...
openlifegrid.com/VirtualLand.aspx - Cached




Virtual Land in Second Life The parcels in Holly Kai Estates are the MOST affordable that we offer. It is a great opportunity. ...
www.facebook.com/pages/...Real...Virtual-Land.../1748185324... - Cached


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Note added at 441 days (2012-07-27 17:39:21 GMT) Post-grading
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glad to have helped