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

clanga loud resonant repeating noise
clungcome or be in close contact with; stick or hold together and resist separation

clangroup of people related by blood or marriage
lungeither of two saclike respiratory organs in the chest of vertebrates; serves to remove carbon dioxide and provide oxygen to the blood
lang
luna(Roman mythology) the goddess of the Moon; counterpart of Greek Selene
guanany of several large turkey-like game birds of the family Cracidae; native to jungles of tropical America; resembling the curassows and valued as food
ulnathe inner and longer of the two bones of the human forearm
ulan
caulpart of the peritoneum attached to the stomach and to the colon and covering the intestines
clag
gaun

canairtight sealed metal container for food or drink or paint etc.
guna weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
galUnited States liquid unit equal to 4 quarts or 3.785 liters
nagsomeone (especially a woman) who annoys people by constantly finding fault
lagthe act of slowing down or falling behind
lugancient Celtic god
ganseparate the seeds from (cotton) with a cotton gin
lacresinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
gul
gnularge African antelope having a head with horns like an ox and a long tufted tail

anan associate degree in nursing
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
naa silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
unan organization of independent states formed in 1945 to promote international peace and security
nuthe 13th letter of the Greek alphabet
aga soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

GLUCAN