English word hectad comes from English -ad (A unit. Toward.), English hect- (Form of hecto-—meaning 100—used before a vowel.)
| Dictionary entry | Language | Definition |
|---|---|---|
| -ad | English (eng) | A unit. Toward. |
| hect- | English (eng) | Form of hecto-—meaning 100—used before a vowel. |
| hectad | English (eng) | (biology, cartography) A unit of land area, ten by ten (that is, a hundred) square kilometres, often used for assessing how widely distributed particular animals or plants are. |