any of several tadpolelike, freshwater catfishes of the genus Noturus, of the central and eastern U.S., having a poisonous pectoral spine: some are threatened or endangered.
Origin of madtom
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for madtom
Historical Examples of madtom
By 1959, the third summer of continuous flow, the Neosho madtom was again common.