“INDICIUM” is a valid word. — 13 points Scrabble

indiuma rare soft silvery metallic element; occurs in small quantities in sphalerite
imidic

cumindwarf Mediterranean annual long cultivated for its aromatic seeds
mucina nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces
mucid

mindthat which is responsible for one's thoughts and feelings; the seat of the faculty of reason
minia very short skirt
midithe southern part of France
muni
duci
imid
nidia central point or locus of an infection in an organism
unci(biology) any hook-shaped process or part

mudwater soaked soil; soft wet earth
dimswitch (a car's headlights) from a higher to a lower beam
midused in combination to denote the middle
cumthe thick white fluid containing spermatozoa that is ejaculated by the male genital tract
dina loud harsh or strident noise
duitwo items of the same kind
dunhorse of a dull brownish grey color
nimgame in which matchsticks are arranged in rows and players alternately remove one or more of them; in some versions the object is to take the last remaining matchstick on the table and in other versions the object is to avoid taking the last remaining matchstick on the table
mun
cudfood of a ruminant regurgitated to be chewed again

ina unit of length equal to one twelfth of a foot
um
ida state in the Rocky Mountains
midestruction of heart tissue resulting from obstruction of the blood supply to the heart muscle
unan organization of independent states formed in 1945 to promote international peace and security
muthe 12th letter of the Greek alphabet
nuthe 13th letter of the Greek alphabet

INDICIUM