| hyetograph | hyetograph, กราฟฝนสะสม [เทคนิคด้านการชลประทานและการระบายน้ำ] |
| Hyetograph | n. [ Gr. &unr_; rain + -graph. ] A chart or graphic representation of the average distribution of rain over the surface of the earth. [ 1913 Webster ] |
| Hyetographic | a. Of or pertaining to to hyetography. [ 1913 Webster ] |
| Hyetography | n. The branch of physical science which treats of the geographical distribution of rain. [ 1913 Webster ] |