Chreod, is a portmanteau term coined by 20th century biologist Conrad Hal Waddington that combines the Greek word for "determined" or "necessary" and the word for "pathway."
Joseph Conrad | Tony Conrad | Hal Roach | Hal Holbrook | Hal David | Conrad Veidt | Conrad Black | Robert Conrad | HAL 9000 | Conrad II | Pete Conrad | Hal Willner | Kent Conrad | Hal McKusick | Hal Linden | Hal Galper | Hal Ashby | Conrad | William Conrad | James Hal Cone | Hal Ketchum | Hal Jordan | Conrad Weiser | Conrad II, Holy Roman Emperor | Conrad Aiken | Jess Conrad | Hubert Parker, Baron Parker of Waddington | Hal Rogers | Hal Miller | Hal Clement |