“LUNULAR” is a valid word. — 7 points Scrabble

lulua very attractive or seductive looking woman
luna(Roman mythology) the goddess of the Moon; counterpart of Greek Selene
luauan elaborate Hawaiian feast or party (especially one accompanied by traditional foods and entertainment)
nulla quantity of no importance
ulnathe inner and longer of the two bones of the human forearm
ulan
nurl
unaua sloth of Central America that has two long claws on each forefoot and three long claws on each hindfoot

allquantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class
runa score in baseball made by a runner touching all four bases safely
ranmove fast by using one's feet, with one foot off the ground at any given time
urna large vase that usually has a pedestal or feet
lar
ulu

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
ara colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
nuthe 13th letter of the Greek alphabet

LUNULAR