noun[mass noun] Biology
- The turning of all or part of an organism in a particular direction in response to an external stimulus.More example sentences
- This protein is embedded in and extends exterior to the viral lipid membrane and is primarily responsible for host cell receptor binding and host cell tropism.
- An envelope glycoprotein on the surface is thought to be responsible for mediating viral entry into cells, tissue tropism, and host range.
- It has a wide cell tropism and remains extra-chromosomal, therefore minimising the risk of insertional mutagenesis.
late 19th century: from Greek tropos 'turning' (from trepein 'to turn') + -ism.
More definitions of tropismDefinition of tropism in:
- The US English dictionary