English Language
WordTools.ai
BETA
meaning
in a sentence
phrases
associations
synonyms
Sentences with phrase «glassy black volcanic rock»
Brier took the term to mean obsidian —
a glassy black volcanic rock
that can be flaked to a razor's edge.
http://discovermagazine.com/
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z