bio|lo gi|cal clo ck (biological clocks ) N‑COUNT [oft poss N ] Your biological clock is your body's way of registering time. It does not rely on events such as day or night, but on factors such as your habits, your age, and chemical changes taking place in your body. □  For women, the 'biological clock' governs the time for having children.

bio|lo gi|cal di|ve r|sity N‑UNCOUNT Biological diversity is the same as biodiversity .

bi|ol|ogy /ba I ɒ lədʒi/

1 N‑UNCOUNT Biology is the science which is concerned with the study of living things. ●  bi|olo|gist /ba I ɒ lədʒ I st/ (biologists ) N‑COUNT □  …biologists studying the fruit fly.

2 N‑UNCOUNT The biology of a living thing is the way in which its body or cells behave. □  The biology of these diseases is terribly complicated. □  …human biology.

3 → see also molecular biology

bio|medi|cal /ba I oʊme d I k ə l/ ADJ [ADJ n] Biomedical research examines the effects of drugs and medical techniques on the biological systems of living creatures. □  Biomedical research will enable many individuals infected with the disease to live longer, more comfortable lives.

bio|met|ric /ba I oʊme tr I k/ ADJ [ADJ n] Biometric tests and devices use biological information about a person to create a detailed record of their personal characteristics. □  …the use of biometric information such as fingerprints.

bi|on|ic /ba I ɒ n I k/ ADJ [usu ADJ n] In science fiction books or films, a bionic person is someone who has special powers, such as being exceptionally strong or having exceptionally good sight, because parts of their body have been replaced by electronic machinery. □  …the Bionic Woman.

bio|pic /ba I oʊp I k/ (biopics ) N‑COUNT A biopic is a film that tells the story of someone's life.

bi|op|sy /ba I ɒpsi/ (biopsies ) N‑VAR A biopsy is the removal and examination of fluids or tissue from a patient's body in order to discover why they are ill.

bio|sphere /ba I oʊsf I ə r / N‑SING The biosphere is the part of the earth's surface and atmosphere where there are living things. [TECHNICAL ]

bio|tech /ba I oʊtek/ N‑UNCOUNT [usu N n] Biotech means the same as biotechnology . □  …the biotech industry.

bio|tech|no|logi|cal /ba I oʊte knəlɒ dʒ I k ə l/ ADJ [ADJ n] Biotechnological means relating to biotechnology. [TECHNICAL ] □  …modern biotechnological methods of genetic manipulation.

bio|tech|nol|ogy /ba I oʊteknɒ lədʒi/ N‑UNCOUNT Biotechnology is the use of living parts such as cells or bacteria in industry and technology. [TECHNICAL ] ●  bio|tech|nolo|gist /ba I oʊteknɒ lədʒ I st/ (biotechnologists ) N‑COUNT □  …biotechnologists turning proteins into pharmaceuticals.

bio|ter|ror|ism /ba I oʊte rər I zəm/ also bio-terrorism N‑UNCOUNT Bioterrorism is terrorism that involves the use of biological weapons. □  …the threat of bioterrorism. ●  bio|ter|ror|ist /ba I oʊte rər I st/ (bioterrorists ) N‑COUNT [oft N n] □  …the war against bioterrorists. □  …a bioterrorist attack.

bio|weap|on /ba I oʊwe pən/ also bio-weapon (bioweapons ) N‑COUNT Bioweapons are biological weapons, which involve the use of bacteria or other living organisms in order to destroy other organisms which are harmful to plants and crops.

bi|par|ti|san /ba I pɑː r t I zæ n, [AM ] ba I pɑː rt I z ə n/ ADJ [usu ADJ n] Bipartisan means concerning or involving two different political parties or groups. □  …a bipartisan approach to educational reform.

bi|ped /ba I ped/ (bipeds ) N‑COUNT A biped is a creature with two legs. [TECHNICAL ]

bi|plane /ba I ple I n/ (biplanes ) N‑COUNT A biplane is an old-fashioned type of aeroplane with two pairs of wings, one above the other.

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