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There are 4 fifteen-letter words containing OAST| ARCHEOASTRONOMY | • archeoastronomy n. Alternative spelling of archaeastronomy. • ARCHEOASTRONOMY n. the scientific study of the beliefs and practices concerning astronomy that existed in ancient and prehistoric civilizations. | | BIOASTRONAUTICS | • bioastronautics n. The study of the biological, behavioural and medical aspects of astronautics. • BIOASTRONAUTICS n. the science dealing with the effects of travel in space on living organisms. | | ROLLERCOASTERED | • ROLLERCOASTER v. to direct or cause to move with great speed, esp. in a set direction. | | TOASTMISTRESSES | • toastmistresses n. Plural of toastmistress. • TOASTMISTRESS n. a woman who acts as toastmaster. |
Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America. Definitions are short excerpt from the 1Word.ws and WikWik.org.
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