organisms to destroy them, not chemicals)
yam# (o a chms
biological parents (= natural parents, not
the people who adopted him/her) -j% A lA A # 3 (of washing powder, etc. Wt
using enzymes (= chemical
substances that are found in plants and animals) to get clothes, etc. clean jjp
( /£ it ) ®£ : biological and
non-biological powders
,bio,logical 'dock noun (technical A i§) a natural system in
living things that controls regular physical activities such as sleeping A #7ft; £3#: (figurative) At 35, Kate’s biological
clock was ticking (= she was beginning to think that she would soon be
too old to have children). £!j 35 A H*, Hi#«Ih1 () 0 , bio, logical di'versity
noun = biodiversity , bio, logical warfare (also germ warfare) noun [u] the use of harmful bacteria
as weapons of war £ %
,bio,logical 'weapon noun a weapon of war that uses
harmful bacteria—compare chemical weapon
biologist /bai’Dlad3ist; NAmE -'a:l-/ noun a scientist who studies
biology
biol ogy /bai'Dlad3i; NAmE -'ail-/ noun [U]
1 the
scientific study of the life and structure of plants and animals £$5^: a degree in biology ^
— compare botany, zoology 2 the way in which the
body and cells of a living thing behave ^3: How far is human nature determined by
biology? A '14 ^ ^
bio lu min es cence /.baiauluimi'nesns; NAmE ,baioo-/ noun [U] (biology £) the natural production
of light by living creatures such as glow-worms
bio-mass
/'baiaumaes;
NAmE 'baiou-/ noun [u, sing.] (technical A ill-) the total
quantity or weight of plants and animals in a particular area or volume )
biome /'baiaum; NAmE 'baioom/ noun (biology £) the characteristic
plants and animals that exist in a particular type of environment, for example
in a forest or desert )
bio mech an ics /baiauma'kaemks; NAmE,baiou-/ noun [U] the scientific study of
the physical movement and structure of living creatures A $7 A# bio med ical /.baiau’medikl; NAmE ,baiou-/ adj. [usually before noun] relating
to how biology affects medicine
bio-metric /.baiau'metrik; NAmE ,baiou-/ adj. [usually before noun] using
measurements of human features, such as fingers or eyes, in order to identify
people A#J
bi-onic /bai'Dmk; NAmE -'a:mk/ adj. having parts of the body
that are electronic, and therefore able to do things that are not possible for
normal humans ( 0 ffc
[WfrfyJt ) HBA&Afa
bio phys ics /.baiau'fiziks; NAmE ,baiou-/ noun [U] the science which uses
the laws and methods of physics to study biology
bio-pic /'baiaupik; NAmE 'baiou-/ noun a film/movie about the
life of a particular person fAififf bi opsy /'baropsi; NAmE -arpsi/ noun (pi. -ies) the removal and examination
of tissue from the body of sb who
is ill/sick, in order to find out more about their disease )
bio-rhythm /'baiauridam; NAmE 'baiou-/ noun [usually
pi.] the changing pattern of how physical processes happen in the body, that
some people believe affects human behaviour Uit
bio-sci ence /.baiau'saians; NAmE .baiou-/ noun [C, U] any of the life sciences (= sciences concerned
with studying humans, animals or plants)
bio-sphere /'bai0usfi0(r); NAmE 'baiousfir/ noun [sing.] (technical A iff) the part of the
earth’s surface and