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Line breaks: biol|ogy
Pronunciation: /bʌɪˈɒlədʒi

Definition of biology in English:


[mass noun]
1The study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behaviour, origin, and distribution.
Example sentences
  • An A level student at Sheldon School, Edward is studying biology, physics, chemistry and maths.
  • He managed to walk away with seven O-levels and started studying A-level biology, physics and chemistry.
  • Another, newer field, called systems biology or systems biomedicine, is emerging.
1.1The plants and animals of a particular area: the biology of the Chesapeake Bay
More example sentences
  • We are out for pleasure, to check the biology of the area, and perhaps to get some pictures of marine species we have not seen before.
  • This data is not sufficient to properly assess impacts to the local biology given the probable long-term use of the shoal as a sand resource area.
  • Each of the presenters at the ICPRB conference, “Human Influences on the Biology of the Potomac River,” gave the basin a letter grade for different aspects of the river, based on their expertise.
1.2The physiology, behaviour, and other qualities of a particular organism or class of organisms: human biology
More example sentences
  • Although I aced the exam and the class, the only biology I learnt that semester was animal behaviour.
  • What if the government charged him to set up a world class institute of marine biology?
  • In space it is possible to identify and isolate some unique characteristics of human physiology and biology.


early 19th century: coined in German, via French from Greek bios 'life' + -logy.



Example sentences
  • Many conservationist and wildlife biologists in India all started as bird watchers.
  • Father Ramon Ruiz-Sanchez is a Jesuit priest, from Peru, and a botanist and biologist.
  • He continues to work as an environmental biologist - less tangential to his career as a writer than it might appear.

Definition of biology in:

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