1) Not flexible or pliant; stiff 2) Not moving; fixed Rigid is a brand name of tools sold by Home Depot.A related term is "rigid foam insulation", a material sold by home improvement stores.
1. firm and stiff: not bending or easily moved into a different shape or position lengths of rigid plastic pipes 2. inflexible: applied or carried out strictly, with no allowances or exceptions a...
Liquids are not rigid because the intermolecular forces of attraction between its molecules are not strong enough to hold them as closely as solids, but they are strong enough to ensure that liquids...