IPA: /ˌæɡrɪˈkʌltʃərəlɪst/
KK: /ˌæɡrɪˈkʌltʃərəlɪst/
A person who works in farming or is involved in the business of growing crops and raising animals.
The agriculturalist shared his knowledge about sustainable farming practices at the conference.
Agriculturalist is formed from "agri-" (from Latin "ager", meaning field) and "cultura" (meaning cultivation) combined with the suffix "-ist" (meaning one who practices or is concerned with). The word refers to a person who practices or is concerned with the cultivation of fields or farming.
Think of 'field' ('agri-') and 'cultivation' ('cultura') to remember that an agriculturalist is someone who is involved in farming or cultivating the land.