“DUCTAL” is a valid word. — 9 points Scrabble

cultfollowers of an exclusive system of religious beliefs and practices
ducta bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
dualconsisting of or involving two parts or components usually in pairs
aulda Scottish word
cladwearing or provided with clothing; sometimes used in combination
talca fine grained mineral having a soft soapy feel and consisting of hydrated magnesium silicate; used in a variety of products including talcum powder
laudpraise, glorify, or honor
caulpart of the peritoneum attached to the stomach and to the colon and covering the intestines
daut

cuta share of the profits
acta legal document codifying the result of deliberations of a committee or society or legislative body
catfeline mammal usually having thick soft fur and no ability to roar: domestic cats; wildcats
lada boy or man
tada slight amount or degree of difference
tauthe 19th letter of the Greek alphabet
dala metric unit of volume or capacity equal to 10 liters
cadsomeone who is morally reprehensible
lacresinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
lata broad flat muscle on either side of the back
altangular distance above the horizon (especially of a celestial object)
utaa reptile genus of Iguanidae
cudfood of a ruminant regurgitated to be chewed again

ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
laa white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
ala silvery ductile metallic element found primarily in bauxite
ada public promotion of some product or service
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
utthe local time at the 0 meridian passing through Greenwich, England; it is the same everywhere

DUCTAL