As used in this chapter, unless the context otherwise indicates, the following terms have the following meanings. [1989, c. 546, §11 (AMD).]
Additional words, terms and phrases, whether used in this chapter or not, may be defined for purposes of this chapter by the board by regulation, but in no case may a definition established by this section be altered by board regulation. [1971, c. 618, §12 (AMD).]