From Longman Dictionary of Contemporary Englishbiologicalbi‧o‧lo‧gi‧cal /ˌbaɪəˈlɒdʒɪkəl◂ $ -ˈlɑː-/ ●●○ adjective 1 relating to the natural processes performed by living things the biological functions of the body Depression is both biological and psychological.2 → biological weapons/warfare/attack etc3 HB[only before noun] relating to biology the biological sciences4 → biological parent/father/mother etc —biologically /-kli/ adverb
Examples from the Corpus
biological• In fact, it tends to disprove the biological argument.• Freud had always supposed that the various forms of innate behaviour he explored had biological bases to them.• We can not answer the mystery of desire with descriptions of biological functioning.• There is no biological need for the father to be anywhere around when the baby is born and nurtured.• He has been especially dodgy about agreements meant to prevent him from developing chemical, biological or nuclear weapons.• The Marie Curie Research Institute develops molecular biological research into the causes and treatment of cancer.• biological studies• Most biological systems have feedback mechanisms that help smooth out the little fluctuations that life throws at them.• In biological writing it has often been said that a character is advantageous or detrimental to a species. 