ultrabasic

1. Containing magnesium and iron and only a very small amount of silica. Used of igneous rock.

2. Extremely basic .

3. Very low in silica and rich in iron and magnesium minerals .

4. Relating to or denoting igneous rocks having a silica content less than 45 per cent by weight.

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Top Words by points	Points	Word Game
ultrabasic	14	Scrabble

2 Letters	Scrabble® Points
aa	2
ab	4
ai	2
al	2
ar	2
as	2
at	2
ba	4
bi	4
is	2
it	2
la	2
li	2
si	2
ta	2
ti	2
us	2
ut	2

3 Letters	Scrabble® Points
aal	3
aas	3
aba	5
abs	5
act	5
ail	3
air	3
ais	3
ait	3
ala	3
alb	5
als	3
alt	3
arb	5
arc	5
ars	3
art	3
baa	5
bal	5
bar	5
bas	5
bat	5
bis	5
bit	5
bra	5
bur	5
bus	5
but	5
cab	7
car	5
cat	5
cis	5
cru	5
cub	7
cur	5
cut	5
its	3
lab	5
lac	5
lar	3
las	3
lat	3
lib	5
lis	3
lit	3
rai	3
ras	3
rat	3
ria	3
rib	5
rub	5
rut	3
sab	5
sac	5
sal	3
sat	3
sau	3
sib	5
sic	5
sir	3
sit	3
sri	3
sub	5
tab	5
tar	3
tas	3
tau	3
tic	5
til	3
tis	3
tub	5
tui	3
urb	5
uta	3
uts	3
ats	3

4 Letters	Scrabble® Points
aals	4
abas	6
abri	6
abut	6
acai	6
acta	6
acts	6
ails	4
airs	4
airt	4
aits	4
alar	4
alas	4
alba	6
albs	6
alit	4
alts	4
arbs	6
arcs	6
aria	4
aril	4
arts	4
asci	6
aura	4
baal	6
baas	6
bail	6
bait	6
bals	6
bars	6
bast	6
bats	6
bias	6
birl	6
bits	6
blat	6
blur	6
bras	6
brat	6
bris	6
brit	6
brut	6
bura	6
burl	6
burs	6
bust	6
buts	6
cabs	8
carb	8
carl	6
cars	6
cart	6
casa	6
cast	6
cats	6
caul	6
cist	6
club	8
crab	8
crib	8
cris	6
crit	6
crus	6
cubs	8
cult	6
curb	8
curl	6
curs	6
curt	6
cuts	6
isba	6
labs	6
lacs	6
laic	6
lair	4
lari	4
lars	4
last	4
lati	4
lats	4
latu	4
liar	4
lias	4
libs	6
lira	4
list	4
lits	4
litu	4
lust	4
raia	4
rail	4
rais	4
rats	4
rial	4
rias	4
ribs	6
rubs	6
rust	4
ruts	4
sail	4
salt	4
sari	4
sati	4
saul	4
scab	8
scar	6
scat	6
scut	6
sial	4
silt	4
slab	6
slat	4
slit	4
slub	6
slur	4
slut	4
stab	6
star	4
stir	4
stub	6
suba	6
suit	4
sura	4
tabs	6
tabu	6
tail	4
tala	4
talc	6
tali	4
tars	4
taus	4
tics	6
tils	4
tirl	4
tsar	4
tuba	6
tubs	6
tuis	4
urbs	6
uric	6
ursa	4
utas	4
rabi	6
cria	6

5 Letters	Scrabble® Points
abaci	9
abris	7
abuts	7
acais	7
acari	7
airts	5
albas	7
alias	5
alist	5
altar	5
arcus	7
arias	5
arils	5
artal	5
astir	5
asura	5
atlas	5
atria	5
aulic	7
aural	5
auras	5
auric	7
auris	5
baals	7
bails	7
baits	7
balas	7
balsa	7
balti	7
barca	9
baric	9
basal	7
basic	9
basil	7
birls	7
blast	7
blats	7
blurs	7
blurt	7
bract	9
brail	7
brats	7
brits	7
bruit	7
bruts	7
built	7
buras	7
burls	7
bursa	7
burst	7
cabal	9
carat	7
carbs	9
carls	7
carts	7
cauls	7
cauri	7
clast	7
clubs	9
craal	7
crabs	9
cribs	9
crits	7
crust	7
cubit	9
culti	7
cults	7
curbs	9
curia	7
curls	7
curst	7
cutis	7
ictus	7
laari	5
labia	7
labra	7
laics	7
lairs	5
laris	5
laura	5
liars	5
libra	7
liras	5
litas	5
rabat	7
rabic	9
raias	5
rails	5
raita	5
ratal	5
rials	5
riata	5
rubli	7
sabal	7
sabir	7
sabra	7
sacra	7
salat	5
salic	7
salut	5
sault	5
scart	7
scaur	7
scrub	9
scuba	9
scuta	7
sitar	5
slurb	7
stair	5
stria	5
sulci	7
sural	5
sutra	5
tabla	7
tabus	7
tails	5
talar	5
talas	5
talcs	7
talus	5
tarsi	5
tiara	5
tical	7
tirls	5
trail	5
triac	7
trial	5
tsuba	7
tubal	7
tubas	7
tulsi	5
ultra	5
urbia	7
urial	5
rabis	7
crias	7

6 Letters	Scrabble® Points
abacus	10
abatis	8
ablaut	8
abulia	8
abulic	10
acarus	8
actual	8
airbus	8
altars	6
arabic	10
arabis	8
arista	6
astral	6
atrial	6
aurist	6
bacula	10
baltis	8
barcas	10
basalt	8
blurts	8
bracts	10
brails	8
brasil	8
bruits	8
brutal	8
burial	8
bursal	8
bustic	10
cabals	10
carats	8
casita	8
casual	8
caulis	8
cauris	8
causal	8
citral	8
citrus	8
craals	8
crista	8
cubist	10
cubits	10
curial	8
curtal	8
cutlas	8
laaris	6
lariat	6
lascar	8
latria	6
lauras	6
libras	8
lubric	10
lustra	6
rabats	8
racial	8
racist	8
raitas	6
rascal	8
ratals	6
riatas	6
rictal	8
rictus	8
ritual	6
rubati	8
rustic	8
sabicu	10
sacbut	10
sacral	8
scalar	8
scarab	10
tablas	8
tabuli	8
talars	6
tarsal	6
tarsia	6
tiaras	6
ticals	8
trails	6
triacs	8
trials	6
tribal	8
ultras	6
uracil	8
uratic	8
urbias	8
urials	6

7 Letters	Scrabble® Points
ablauts	9
abulias	9
austral	7
barista	9
basilar	9
burials	9
caritas	9
citrals	9
crustal	9
cubital	11
curtail	9
curtals	9
lariats	7
latrias	7
railbus	9
rituals	7
scribal	11
subalar	9
tabular	9
tabulis	9
tribals	9
uracils	9

8 Letters	Scrabble® Points
arbalist	10
balisaur	10
basaltic	12
cabalist	12
claustra	10
curtails	10
labrusca	12
rustical	10

10 Letters	Scrabble® Points
ultrabasic	14