arduous
- s characterized by effort to the point of exhaustion; especially physical effort
worked their arduous way up the mining valley - s taxing to the utmost; testing powers of endurance
your willingness after these six arduous days to remain here"- F.D.Roosevelt - s difficult to accomplish; demanding considerable mental effort and skill
the arduous work of preparing a dictionary
arenaceous
- a resembling or containing or abounding in sand; or growing in sandy areas
arenaceous limestone
arenaceous grasses
arenicolous
- a growing or living or burrowing in sand
arenicolous worms
areolar
- a relating to or like or divided into areolae
areolar tissue
argent
- n a metal tincture used in heraldry to give a silvery appearance
- s of lustrous grey; covered with or tinged with the color of silver
argentine
- n any of various small silver-scaled salmon-like marine fishes
- a of or relating to or characteristic of Argentina or its people
argentinian
- n a native or inhabitant of Argentina
- a of or relating to or characteristic of Argentina or its people