“AMTRAC” is a valid word. — 10 points Scrabble

carta heavy open wagon usually having two wheels and drawn by an animal
marcmade from residue of grapes or apples after pressing
trama conveyance that transports passengers or freight in carriers suspended from cables and supported by a series of towers
martan area in a town where a public mercantile establishment is set up
cramcrowd or pack to capacity
maara flat-bottomed volcanic crater that was formed by an explosion; often filled with water
acta
atma

cara motor vehicle with four wheels; usually propelled by an internal combustion engine
acta legal document codifying the result of deliberations of a committee or society or legislative body
artthe products of human creativity; works of art collectively
catfeline mammal usually having thick soft fur and no ability to roar: domestic cats; wildcats
arma human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb
ratany of various long-tailed rodents similar to but larger than a mouse
maca waterproof raincoat made of rubberized fabric
ramthe most common computer memory which can be used by programs to perform necessary tasks while the computer is on; an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessible
cama river in east central England that flows past Cambridge to join the Ouse River
mata thick flat pad used as a floor covering
arcelectrical conduction through a gas in an applied electric field
tarany of various dark heavy viscid substances obtained as a residue
tama woolen cap of Scottish origin
marthe month following February and preceding April
ama

ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
ama radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms
mainformal terms for a mother
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
ara colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
aaa dry form of lava resembling clinkers

AMTRAC