Discover a diverse array of words starting with “bi” and their meanings in this concise guide.
- Bicycle- A vehicle with two wheels powered by pedaling.
- Bifocal- Lenses having two different optical powers.
- Bilateral- Involving two sides; mutual.
- Bilingual- Able to speak two languages fluently.
- Binary- Involving two things; composed of two parts.
- Biography- A written account of another person’s life.
- Biology- The science of life and living organisms.
- Biotic- Relating to or resulting from living organisms.
- Biosphere- The global ecological system integrating all living beings and their relationships.
- Bipartisan- Involving the agreement or cooperation of two political parties.
- Bipedal- Using only two legs for walking.
- Biplane- An airplane with two wings one above the other.
- Bicuspid- A tooth with two cusps, such as premolars.
- Binge- Indulge in an activity excessively, particularly eating or drinking.
- Biodegradable- Capable of being decomposed by biological agents, especially bacteria.
- Biopsy- An examination of tissue removed from a living body to discover the presence, cause, or extent of a disease.
- Bionic- Having artificial body parts, especially electromechanical ones.
- Biennial- Occurring every two years.
- Birefringence- The splitting of a light ray into two rays when it passes through certain types of material.
- Bistro- A small, casual eating establishment.
- Bilinear- Involving a first-degree equation or its generalization in two variables.
- Bizarre- Very strange or unusual.
- Bibliophile- A person who collects or has a great love of books.
- Biota- The animal and plant life of a particular region, habitat, or geological period.
- Biometric- Relating to statistical analysis of biological observations and phenomena.
- Bipolar- Having or relating to two poles or extremities.
- Bivouac- A temporary camp without tents or cover.
- Biped- An organism that uses two legs for walking.
- Bile- A bitter fluid produced by the liver and aids in digestion.
- Biogenesis- The synthesis of substances by living organisms.
- Bigamy- The act of marrying someone while already legally married to someone else.
- Bigot- A person who is intolerantly devoted to his or her own opinions and prejudices.
- Bigoted- Showing stubborn intolerance.
- Bidirectional- Functioning in two directions.
- Bibliography- A list of the books referred to in a scholarly work.
- Bioluminescence- The production of light by living organisms.
- Bibliomania- An exaggerated preoccupation with the acquisition and possession of books.
- Binary- Relating to, composed of, or involving two things.
- Bind- To tie or secure with a rope, band, or other restraints.
- Biome- A large naturally occurring community of flora and fauna occupying a major habitat.
- Biomass- The total mass of organisms in a given area or volume.
- Biopsy- The removal and examination of tissue from a living body to diagnose a disease.
- Biotic- Relating to or resulting from living things, especially in their ecological relations.
- Bipedalism- The condition of being bipedal; walking on two feet.
- Bionic- Having artificial body parts, especially electromechanical ones.
- Biodiversity- The variety of plant and animal life in the world or in a particular habitat.
- Biodegrade- To decompose as a result of action by living organisms.
- Bipolarity- The condition of having two opposing forces or principles.
- Binaural- Involving or relating to both ears.
- Biocidal- Able to kill living organisms.
- Biogenetic- Relating to the production of living organisms from other living organisms.
- Biracial- Concerning or containing members of two racial groups.
- Binary- Consisting of two parts.
- Binaural- Relating to or using both ears.
- Bimonthly- Occurring every two months.
- Biotechnology- Technology based on biology, used in agriculture, food science, and medicine.
- Binaural- Involving both ears.
- Biogenic- Produced or brought about by living organisms.
- Biographer- A person who writes an account of someone’s life.
- Biohazard- A risk to human health or the environment arising from biological work, especially with microorganisms.
- Bioluminescent- Emitting light produced by living organisms.
- Biodegradation- Decomposition or breakdown of organic material by living organisms.
- Bipod- A two-legged stand.
- Bioactive- Having an effect on living tissue.
- Biogas- Gas produced by the fermentation of organic matter.
- Biochemical- Relating to the chemical processes in living organisms.
- Biotechnology- The use of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc.
- Biomolecule- A molecule that occurs naturally in living organisms.
- Biophysics- The science of the application of the laws of physics to biological phenomena.
- Biopolymer- A natural polymer produced by the cells of living organisms.
- Bioinformatics- The science of collecting and analyzing complex biological data.
- Biopsychology- The study of the biological bases of behavior and mental states.
- Bioregion- An ecologically and geographically defined area.
- Bioreactor- A container or system that supports a biologically active environment.
- Biotic- Relating to or caused by living organisms.
- Bioprospecting- The search for plant and animal species from which medicinal drugs and other commercially valuable compounds can be obtained.
- Biofuel- A fuel derived directly from living matter.
- Bioavailability- The proportion of a drug or other substance which enters the circulation when introduced into the body and so is able to have an active effect.
- Bioethical- Relating to the ethics of medical and biological research.
- Biosynthesis- The production of complex molecules within living organisms or cells.
- Biosafety- The prevention of large-scale loss of biological integrity.
- Bioclimatology- The study of the effects of climatic conditions on living organisms.
- Biogenesis- The synthesis of substances by living organisms.
- Biorhythm- A cyclic pattern of physical, emotional, or intellectual changes and patterns.
- Biovular- Pertaining to or derived from two separate ova.
- Biophysical- Relating to the physical properties of biological entities.
- Bioconversion- The conversion of organic materials, such as plant or animal waste, into usable energy sources.
- Bioassay- A procedure for determining the concentration, purity, and/or biological activity of a substance.
- Biomechanics- The study of the structure and function of biological systems as influenced by mechanical principles.
- Biocontrol- Control of pests and weeds by means of organisms that are natural predators, parasites, or pathogens.
- Biocenosis- The interaction of life forms within an ecosystem.
- Bioclastic- Composed of fragments of biological origin.
- Biosocial- Relating to the interaction between biological and social factors.
- Bioscope- An early form of movie projector.
- Biosignal- A signal in living organisms that can be measured and analyzed.
- Biostatistics- The branch of statistics that deals with data relating to living organisms.
- Bioterrorism- Terrorism involving the release of toxic biological agents.
- Biotic community- An interacting group of various species in a common location.
- Bistable- Having two stable states.
- Bivector- A mathematical object in geometric algebra that represents an oriented plane segment.