13-Letter Words Containing: T,H,R,O,A,T

• the quality of being parallel to the horizon

• green plant having a vascular system: ferns, gymnosperms, angiosperms

• Any plant, typically living in deserts, that obtains its water from long taproots that reach the water table

• a document giving an official instruction or command

• the power or right to give orders or make decisions

• official permission or approval

• the act of conferring legality or sanction or formal warrant

• plant that reproduces by means of seeds not spores