Quick Definition
a flowing, an issue
Strong's Definition
a flux (of blood)
Derivation: from G4506 (ῥύομαι) in the sense of its congener G4482 (ῥέω);
KJV Usage: issue
Thayer's Greek Lexicon
ῤύσις, ῤύσεως, ἡ (from an unused present ῤύὧ, from which several of the tenses of ῤέω are borrowed), a flowing, issue: τοῦ αἵματος, Mar_5:25; Luk_8:43 (on the two preceding passages, cf. Buttmann, § 147, 11; Winers Grammar, § 29, 3b.), 44 (Hippocrates, Aristotle).
Mounce Concise Greek Dictionary
ῥύσις rhysis 3x
a flowing; a morbid flux, Mar_5:25 ; Luk_8:43-44
Abbott-Smith Greek Lexicon
ῥύσις , -εως , ἡ
( <ῥέω ),
[in LXX chiefly for H2101 ;]
a flowing, issue: τ . αἵματος , Mar_5:25 , Luk_8:43-44 .†
Moulton & Milligan — Vocabulary of the Greek NT
ῥύσις [page 565]
ῥύσις is very common of the flow or yield of wine at the vintage, see e.g. P Giss I. 79 iii. 12 ( c A.D. 117) ἐὰν δ ]ε̣̣ ὁ θε [ὸ ]ς ἐπιτρέψῃ πολλὴν ῥύσιν [ἔσεσθα ]ι εἰς ἔτους , τάχα διὰ τὴν ἐσομέ [νην εὐ ]ωνίαν τοῦ γενήματος ἀθ̣υμή [σουσι οἱ γ ]εοῦχοι , and the other exx. collected by the editor ad l . The noun seems to have a different meaning in P Bad 15 .31 (i/B.C.) εἰπε̣̣ δὲ τῆ ἀδελφῆ πέμψαι μοι τὴν ῥύσιν , ἵνα χειρογραφήσω . For its use in connexion with the flow of blood, as in Mar_5:25 , Luk_8:43 , see Vett. Val. p. 282 .30 . Ῥυτόν is applied to a drinking-horn in P Petr III. 42 H (7) .3 ( c . B.C. 250) (= Witkowski .2 , p. 13).
Liddell-Scott — Intermediate Greek Lexicon
ῥύσις ῥύ^σις, εως, [Etym: ῥέω] "a flowing, flow", Plat. "the course of a river, stream", Polyb.
STEPBible — Tyndale Abridged Greek Lexicon
ῥύσις, -εως, ἡ
(ῥέω), [in LXX chiefly for זוֹב ;]
a flowing, issue: τ. αἵματος, Mrk.5:25, Luk.8:43-44.†
(AS)