synapsid

1. Any animal (including all mammals) of the class Synapsida.

2. Any of a subclass (Synapsida) of extinct chiefly Permian and Triassic reptiles (as the pelycosaurs) that resembled mammals, had a single pair of lateral temporal skull openings, and are usually held to be ancestral to mammals.

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Top Words by points	Points	Word Game
synapsid	14	Scrabble

2 Letters	Scrabble® Points
ad	3
ai	2
an	2
as	2
ay	5
da	3
id	3
in	2
is	2
na	2
pa	4
pi	4
si	2
ya	5

3 Letters	Scrabble® Points
ads	4
aid	4
ain	3
ais	3
and	4
ani	3
any	6
asp	5
ass	3
ays	6
dan	4
dap	6
das	4
day	7
din	4
dip	6
dis	4
ids	4
ins	3
nap	5
nay	6
nip	5
pad	6
pan	5
pas	5
pay	8
pia	5
pin	5
pis	5
psi	5
pya	8
sad	4
san	3
sap	5
say	6
sin	3
sip	5
sis	3
spa	5
spy	8
syn	6
yap	8
yas	6
yin	6
yip	8

4 Letters	Scrabble® Points
aids	5
ains	4
ands	5
anis	4
asps	6
ayin	7
dais	5
dans	5
daps	7
days	8
dins	5
dips	7
diss	5
naps	6
nays	7
nipa	6
nips	6
padi	7
pads	7
paid	7
pain	6
pans	6
pass	6
pays	9
pian	6
pias	6
pina	6
pins	6
piny	9
psis	6
pyas	9
pyin	9
sadi	5
said	5
sain	4
sand	5
sans	4
saps	6
says	7
sins	4
sips	6
snap	6
snip	6
span	6
spas	6
spay	9
spin	6
yaps	9
yins	7
yips	9

5 Letters	Scrabble® Points
apsis	7
aspis	7
ayins	8
daisy	9
nipas	7
padis	8
pains	7
pandy	11
pansy	10
pians	7
pinas	7
pyins	10
sadis	6
saids	6
sains	5
sands	6
sandy	9
sapid	8
sasin	5
sayid	9
snaps	7
snips	7
spans	7
spays	10
spins	7
spiny	10

6 Letters	Scrabble® Points
dipsas	9
sayids	10

8 Letters	Scrabble® Points
synapsid	14