[ bahy-oh-in-fer-mat-iks ]
/ ˌbaɪ oʊˌɪn fərˈmæt ɪks /

noun (used with a singular verb)

the retrieval and analysis of biochemical and biological data using mathematics and computer science, as in the study of genomes. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for bioinformatics

/ (ˌbaɪəʊˌɪnfəˈmætɪks) /

noun (functioning as singular)

the branch of information science concerned with large databases of biochemical or pharmaceutical information
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

Scientific definitions for bioinformatics

[ bī′ō-ĭn′fər-mătĭks ]

Used with a singular verb Information technology as applied to the life sciences, especially the technology used for the collection and analysis of genomic data.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.