isobutyr-
combining form
or isobutyro-
Etymology: International Scientific Vocabulary, from isobutyric (in isobutyric acid)
: isobutyric : related to isobutyric acid
< isobutyramide >
< isobutyronitrile >
or isobutyro-
< isobutyramide >
< isobutyronitrile >