• Bengali Word বায়ব English definition (adjective) relating/belonging to wind or air; windy; airy; aerial; atmospheric; ethereal; pneumatic; air-like; gaseous; aerobic; aerological; unsubstantial; vaporous; rarefied. বায়ব অবরোহ/মূল (noun) (botany) aerial root. বায়ব প্রতিসরণ (noun) (astronomy) atmospheric refraction.