A separate hairpiece sewn or glued along a "track" to add length and/or color.  

The gradual transition from breast milk to other liquid and solid foods, which could constitute a danger point in nutritional...

A garden established beneath trees (usually deciduous) in partial shade or even quite deep shade. It suits plants that require...

A feature of dicotyledonous trees and shrubs, being the tissue laid down inside the bark cylinder by the dividing cells...

Very small, winged, sap-sucking insects of the family Aleyrodidae, which belongs to the same order of insects as the aphids....

Used mostly for trees and shrubs with pendulous branches or branchlets, as in weeping willows.  

The same as aquatic.  

Usually applied to the upper- middle parts of the temperate zones, between about 30 and 40 degrees of latitude, where...

A type of tiny nematode worm which infests the lymph system, causing elephantiasis.  

To twist and turn because the pain is very severe.