touch-stone
touch-stone
subs.
Ar. also P. βά̆σᾰνος, ἡ. P. λίθος, ἡ (Plat. Gorg. 486d).
subs.
Ar. also P. βά̆σᾰνος, ἡ. P. λίθος, ἡ (Plat. Gorg. 486d).
TOUCH-STONE
PROP. coticula: lapis Lydius (Plin.); *schistus Lydius (Linn.).
Figuratively obrussa alicujus rei (Cic. Sen.); lex norma qua spectetur ad quam exigatur aliquid. To apply a touch-stone to anything aliquid ad obrussam exigere (Sen.): this is a touch-stone for anything haec est alicujus rei obrussa (Sen.).
PROP. coticula: lapis Lydius (Plin.); *schistus Lydius (Linn.).
Figuratively obrussa alicujus rei (Cic. Sen.); lex norma qua spectetur ad quam exigatur aliquid. To apply a touch-stone to anything aliquid ad obrussam exigere (Sen.): this is a touch-stone for anything haec est alicujus rei obrussa (Sen.).
touch-stone:
I. Lit.:
1. cōtĭcŭla: Plin. 33, 8, 43.
2. lapis Heraclius Lydius: ib.
3. index, ĭcis, m.: Ov. Met. 2, 706.
4. *schistus Lydius: Linn. Phr.: after applying the t., postquam indicium est factum, Vitr. 9, 3.
II. Fig.: obrussa (a testing of gold): reason must be used as a t., adhibenda tanquam obrussa ratio, Cic. Brut. 74, 258: to apply the t. to arguments, argumenta ad obrussam exigere, Sen. Q. N. 4, 5.
I. Lit.:
1. cōtĭcŭla: Plin. 33, 8, 43.
2. lapis Heraclius Lydius: ib.
3. index, ĭcis, m.: Ov. Met. 2, 706.
4. *schistus Lydius: Linn. Phr.: after applying the t., postquam indicium est factum, Vitr. 9, 3.
II. Fig.: obrussa (a testing of gold): reason must be used as a t., adhibenda tanquam obrussa ratio, Cic. Brut. 74, 258: to apply the t. to arguments, argumenta ad obrussam exigere, Sen. Q. N. 4, 5.