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

curdsa coagulated liquid resembling milk curd
scudi
crudsheavy wet snow that is unsuitable for skiing
discian athletic competition in which a disk-shaped object is thrown as far as possible
irids

irisplants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
discsound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
cris
curda coagulated liquid resembling milk curd
crudheavy wet snow that is unsuitable for skiing
scudthe act of moving along swiftly (as before a gale)
cursan inferior dog or one of mixed breed
uricin or relating to or obtained from urine
surda consonant produced without sound from the vocal cords
ridsrelieve from
cudsfood of a ruminant regurgitated to be chewed again
crusthe leg from the knee to foot
duci
irid
urdsgoddess of fate: a giantess who personified the past

sirterm of address for a man
ridrelieve from
ids
sri
disgod of the underworld; counterpart of Greek Pluto
duitwo items of the same kind
sicurge to attack someone
curan inferior dog or one of mixed breed
cisan alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991
cudfood of a ruminant regurgitated to be chewed again
urdgoddess of fate: a giantess who personified the past

ishave the quality of being; (copula, used with an adjective or a predicate noun)
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
ida state in the Rocky Mountains
sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors

SCIURID