hectad

== English == === Etymology === From hect- +‎ -ad. === Pronunciation === IPA(key): /ˈhɛktæd/ === Noun === hectad (plural hectads) (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. ==== Usage notes ==== Not to be confused with hexad ("a group, series or set of six things") or heptad ("a group, series or set of seven things"). === Further reading === hectad on Wikipedia.Wikipedia === Anagrams === Cath ed, cathed, chated, detach