raw materials; ingredients
basis for decision; evidence for judging
research material; experimental material
material for experiments; experimental material
bargaining chip; bargaining tool
cause for concern; reasons for uneasiness
cause (grounds) for concern (anxiety); reason for uneasiness
good material; valuable data; positive factor (for the stock market); good news
advertising material; promotional material; propaganda material
matters (issues) that need be reconsidered (reflected on)
materials science and engineering
new material; exotic material
adverse stock market factor; bearish market factor; negative factor
elements deserving criticism; material used to criticize someone (something)
polymeric material; polymer
mechanics of materials; material mechanics