1. (of childbirth) before the end of the normal period of gestation
   "the child was born prematurely" 
2. Too soon; in a premature manner
   "I spoke prematurely"
   - untimely

See also: premature

• bioavailability
• biocatalyst
• biocatalytic
• biochemical
• biochemical mechanism
• biochemically
• biochemist
• biochemistry
• biochip
• bioclimatic
• bioclimatology
• biodata
• biodefence
• biodefense
• biodegradable
• biodegradable pollution
• biodegradation
• biodegrade
• biodiesel
• biodiversity
• biodynamics
• bioelectric
• bioelectricity
• bioengineer
• bioengineering