exonuclease: a nuclease that releases one nucleotide at a time (serially) beginning at one of a nucleic acid
nuclease: general term for enzymes that catalyze the hydrolysis of nucleic acid by cleaving chains of nucleotides into smaller units
cannabidaceae: two genera of erect or twining herbs that are pollinated by the wind, including the genera Cannabis and Humulus; term not used in all classifications; in some the genus Cannabis is placed in the family Moraceae and the genus Humulus in the family Urticaceae