1.thewayoflife,especiallythegeneralcustomsandbeliefs,ofaparticulargroupofpeopleataparticulartime
2.music,art,theatre,literature,etc
3.cells,tissues,organsororganismsgrownforscientificpurposes,orthebreedingandkeepingofparticularlivingthingsinordertogetthesubstancestheyproduce