15-Letter Words Containing: A,R,R,H,A,L,_

• the branch of science that studies the formation and structure of crystals

• with regard to architecture

• telegraphy that uses transmission by radio rather than by wire

• the use of radio to send telegraphic messages (usually by Morse code)

• not classified hierarchically

• using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

• telegraphy that uses transmission by radio rather than by wire

• the use of radio to send telegraphic messages (usually by Morse code)