Quick Definition
crystal
Strong's Definition
ice, i.e. (by analogy) rock "crystal"
Derivation: from a derivative of (frost);
KJV Usage: crystal
Thayer's Greek Lexicon
κρύσταλλος, κρυστάλλου, ὁ (from κρύος ice; hence properly, anything congealed (cf. Latincrusta) and transparent) (from Homer down), crystal: a kind of precious stone, Rev_4:6; Rev_22:1; (cf. B. D. under the word . On its gender cf. Liddell and Scott, under the word II.)
STRONGS NT 2930a: κρυφαῖοςκρυφαῖος, κρυφαίᾳ, κρυφαιον (κρυφᾶ), hidden, secret: twice in Mat_6:18 L T Tr WH. (Jer_23:24; Wis_17:3; in Greek writings from Aeschylus and Pindar down.)
Mounce Concise Greek Dictionary
κρύσταλλος krystallos 2x
pr. clear ice; crystal, Rev_4:6 ; Rev_22:1
κρυφαῖος kryphaios 2x
secret, hidden, Mat_6:18
Abbott-Smith Greek Lexicon
κρύσταλλος , -ου , ὁ
( < κρύος , frost),
[in LXX : Job_38:29 , Psa_147:17 , Eze_1:22 ( H7140 ), etc.;]
crystal: Rev_4:6 ; Rev_22:1 .†
Moulton & Milligan — Vocabulary of the Greek NT
κρύσταλλος [page 361]
P Lond 130 .150 (horoscope i/ii A.D.) (= I. p. 137) ὁμοία κρυστάλλῳ , P Leid X viii. 29 (iii/iv A.D.) κρυστάλλου ῥεινήματος ( l. ῥινήματος , filings ) στατῆρες δ̄ . With Wis_19:21 κρυσταλλοειδὲς γένος ἀμβροσίας τροφῆς , cf. Usener Epic. p. 45, 2 πῆξιν . . . κρυσταλλοειδῆ . In MGr κρυσταλλένιος , of crystal, is used as an endearing address to a girl.
Liddell-Scott — Intermediate Greek Lexicon
κρύσταλλος κρύσταλλος, ὁ, [Etym: κρύος] "clear ice, ice", Lat. glacies, Hom. , Hdt. , attic "crystal, rock-crystal", Anth.
STEPBible — Tyndale Abridged Greek Lexicon
κρύσταλλος, -ου, ὁ
(κρύος, frost), [in LXX: Job.38:29, Psa.147:17, Eze.1:22 (קֶרַח), etc. ;]
crystal: Rev.4:6 22:1.†
(AS)