A flint

[flint] /flɪnt/
noun
austin, 1812–86, u.s. physician: founder of bellevue and buffalo medical colleges.
his son, austin, 1836–1915, u.s. physiologist and physician.
a city in se michigan.
flintshire.
flint
/flɪnt/
noun
an impure opaque microcrystalline greyish-black form of quartz that occurs in chalk. it produces sparks when struck with steel and is used in the manufacture of pottery, flint gl-ss, and road-construction materials. formula: sio2
any piece of flint, esp one used as a primitive tool or for striking fire
a small cylindrical piece of an iron alloy, used in cigarette lighters
also called flint gl-ss, white flint. colourless gl-ss other than plate gl-ss
see optical flint
verb
(transitive) to fit or provide with a flint
word origin
old english; related to old high german flins, old swedish flinta splinter of stone, latin splendēre to shine
flint
/flɪnt/
noun
a town in ne wales, in flintshire, on the dee estuary. pop: 11 936 (2001)
a city in se michigan: closure of the car production plants led to a high level of unemployment. pop: 120 292 (2003 est)
flint
n.

old english flint “flint, rock,” common germanic (cf. middle dutch vlint, old high german flins, danish flint), from pie -splind- “to split, cleave,” from root -(s)plei- “to splice, split” (cf. greek plinthos “brick, tile,” old irish slind “brick”). transferred senses were in old english.
flint
(flĭnt)

a very hard, gray to black variety of chalcedony that makes sparks when it is struck with steel. it breaks with a conchoidal fracture.

the dark gray to black variety of chert.

abounds in all the plains and valleys of the wilderness of the forty years’ wanderings. in isa. 50:7 and ezek. 3:9 the expressions, where the word is used, means that the “messiah would be firm and resolute amidst all contempt and scorn which he would meet; that he had made up his mind to endure it, and would not shrink from any kind or degree of suffering which would be necessary to accomplish the great work in which he was engaged.” (comp. ezek. 3:8, 9.) the words “like a flint” are used with reference to the hoofs of horses (isa. 5:28).