[ bahy-uh-loj-i-kuhl ]
See synonyms for biological on
  1. Also bi·o·log·ic .Biology. relating to the science and application of biology: Ideal candidates will have appropriate training in both physical and biological chemistry.

  2. Biology. relating to or involving living matter: Liquid nitrogen is critical for preserving blood, tissue, and other biological specimens.

  1. Biology. relating to the living organisms of a region:We are hoping to manage the river valley so that we maintain and enhance the current level of biological diversity.

  2. Biology, Genetics. related genetically, as a birth parent whose egg or sperm contributed to the DNA of a child: He met his biological father when he was 37.The Greenes have two biological sons and one adopted daughter.

  1. Usually biologicals. Pharmacology. biologic (def. 1).

Origin of biological

First recorded in 1855–60; biolog(y) + -ical

Other words from biological

  • bi·o·log·i·cal·ly, adverb
  • non·bi·o·log·i·cal, adjective
  • non·bi·o·log·i·cal·ly, adverb
  • pseu·do·bi·o·log·i·cal, adjective
  • pseu·do·bi·o·log·i·cal·ly, adverb
  • sem·i·bi·o·log·ic, adjective
  • sem·i·bi·o·log·i·cal, adjective
  • sem·i·bi·o·log·i·cal·ly, adverb
  • un·bi·o·log·i·cal, adjective
  • un·bi·o·log·i·cal·ly, adverb

Words Nearby biological Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use biological in a sentence

British Dictionary definitions for biological


archaic biologic

/ (ˌbaɪəˈlɒdʒɪkəl) /

  1. of or relating to biology

  2. (of a detergent) containing enzymes said to be capable of removing stains of organic origin from items to be washed

  1. (usually plural) a drug, such as a vaccine, that is derived from a living organism

Derived forms of biological

  • biologically, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012