Definition of Pentad
Pen´tad
n.
1.
(Chem.)
Any
element
,
atom
,
or
radical
,
having
a
valence
of
five
,
or
which
can
be
combined
with
,
substituted
for
,
or
compared
with
,
five
atoms
of
hydrogen
or
other
monad
;
as
,
nitrogen
is
a
pentad
in
the
ammonium
compounds
.
2.
Any
grouping
of
five
things
.
a.
1.
(Chem.)
Having
the
valence
of
a
pentad
.
Related Words
5
,
cinque
,
digit
,
figure
,
fin
,
five
,
fivesome
,
Little
Phoebe
,
Phoebe
,
quint
,
quintet
,
quintuplet
,
V
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Penstemon
Penstock
Pent
pent-
Penta-
Pentabasic
Pentacapsular
Pentachenium
Pentachloride
Pentachord
Pentacid
Pentacle
Pentacoccous
Pentaconter
Pentacrinin
Pentacrinite
Pentacrinoid
Pentacrinus
Pentacron
Pentacrostic
Pentadactyl
Pentadactyloid
Pentadecane
Pentadecatoic
Pentadecylic
Pentadelphous
Pentafid
Pentaglot
Pentagon
Pentagonal
Pentagonal dodecahedron
Pentagonally
Pentagonous
Pentagram
Pentagraphic
Pentagynia
Pentagynian
Pentahedral
Pentahedrical
Pentahedron
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