- Biological integrity
- Biological membranes
- Biological methanation
- Biological networks
- Biological pathway
- Biological pump
- Biological soil crusts
- Biological specimens
- Biological value
- Biologically inspired computing
- Bioluminescence
- Bioluminescence imaging
- Bioluminescent bacteria
- Biomagnetism
- Biomagnification
- Biomanipulation
- Biomanufacturing
- Biomarker discovery
- Biomarkers
- Biomass
- Biomass boilers
- Biomass briquettes
- Biomass heating systems
- Biomaterials
- Biomechanics
- Biomechatronics
- Biomedical
- Biomedical engineering
- Biomedical waste
- Biometal
- Biometals
- Biomethane
- Biometric
- Biometrics
- Biomimetic
- Biomimetic material
- Biomimetics
- Biomineralization
- Biomining
- Biomolecular engineering
- Biomolecules
- Biomonitoring
- Bionic
- Biopesticides
- Biopharmaceuticals
- Biopharmaceutics Classification System
- Biophysics
- Biopiracy
- Bioplastic
- Biopolymers
- Biopower
- Bioprecipitation
- Bioprocess
- Bioprocess engineering
- Bioprocessing
- Bioproduction
- Bioproducts
- Biopsy
- Bioreactor landfill
- Bioreactors
- Biorefinery
- Biorefining
- Bioremediation
- Bioresorbable stents
- Bioretention
- Biorthogonal wavelet
- Biosafety
- Biosensors
- Biosignals
- Biosimilars
- Biosolids
- Biosphere
- Biosphere reserves
- Biostatistics
- Biostimulation
- Biosurfactants
- Bioswales
- Biosynthesis
- Biot number
- Biot-Savart law
- Biotechnology
- Bioterrorism
- Biotic
- Biotic homogenization
- Biotic index
- Biotic ligand model
- Biotite
- Biotopes
- Biotransformation
- Bioturbation
- Bipartite graphs
- Biphenyl
- Biplanes
- Biplot
- Bipolar cells
- Bipolar orientation
- Bipolaron
- Bipropellant
- Bipyramid
- Bipyridine
- Biradical
- Bird strikes
- Birefringence
- Birnessite
- Birth control pill
- Birth rate
- Birth weight
- Birthday paradox
- Birthday problem
- Bis(2-ethylhexyl) adipate
- Bis-GMA
- Bis-oxazoline
- Bis-triazinyl pyridine
- Bischofite
- Biscuit
- Bisdemethoxycurcumin
- Bisection
- Bisection bandwidth
- Bisection method
- Bisimulation
- Bismuth
- Bismuth chloride
- Bismuth ferrite
- Bismuth germanate
- Bismuth hydroxide
- Bismuth nitrate
- Bismuth oxide
- Bismuth oxychloride
- Bismuth selenide
- Bismuth silicon oxide
- Bismuth subcarbonate
- Bismuth subsalicylate
- Bismuth sulfide
- Bismuth telluride
- Bismuth titanate
- Bismuth vanadate
- Bismuth(iii) oxide
- Bismuthate
- Bismuthinite
- Bismutite
- Bispectrum
- Bisphenol af
- Bisphosphonates
- Bistability
- Bistable
- Bistatic radar
- Bistatic sonar
- Bistriflimide
- Bisulfide
- Bisulfite