1. (of a body of water) being deficient in plant nutrients, such as nitrogen or phosphorus 
2. (of a diet) being deficient in nutrition

Encyclopedia: Oligotrophic

• bioarm
• bioassay
• bioattack
• bioavailability
• biocatalyst
• biocatalytic
• biochemical
• biochemical mechanism
• biochemically
• biochemist
• biochemistry
• biochip
• bioclimatic
• bioclimatology
• biodata
• biodefence
• biodefense
• biodegradable
• biodegradable pollution
• biodegradation
• biodegrade
• biodiesel
• biodiversity
• biodynamics
• bioelectric