Adjective
Serving or tending to concentrate; characterized by concentration.
Source: Webster's dictionaryA practitioner can focus intensively on one particular object (so-called concentrative meditation), on all mental events that enter the field of awareness (so-called mindfulness meditation), or both specific focal points and the field of awareness. Source: Internet
The forty concentrative meditation subjects refer to Visuddhimagga 's oft-referenced enumeration. Source: Internet