| thallium. |
| (in Turkey) lira; liras. |
| time loan. |
| 1. | Also, t.l. trade last. |
| 2. | trade list. |
[leer-uh; It. lee-rah] 
[leer-ey; It. lee-re] , li⋅ras. | 1. | a coin and monetary unit of Italy, equal to 100 centesimi. Abbreviation: L., Lit. |
| 2. | a silver, bronze, or chrome steel coin and monetary unit of Turkey, equal to 100 kurus; equal to 100 piasters before 1933; Turkish pound. Abbreviation: TL. |
[treyd-last, -lahst] | Informal Older Use. a compliment that one has heard and that one offers to tell the person so complimented under the condition that that person will first report a compliment made about oneself. Abbreviation: T.L. |
| thal·li·um (thāl'ē-əm) n. Symbol Tl A soft, malleable, highly toxic metallic element, used in photocells, infrared detectors, low-melting glass, and formerly in rodent and ant poisons. Atomic number 81; atomic weight 204.38; melting point 303.5°C; boiling point 1,457°C; specific gravity 11.85; valence 1, 3. See Table at element. [thall(o)- (from its green spectral line) + -ium.] |
| Tl The symbol for the element thallium. |
| TL or t/l abbr. total loss |
Tl
The symbol for the element thallium.
| thallium (thāl'ē-əm) Pronunciation Key
Symbol Tl A soft, malleable, very poisonous metallic element that is used in photography, in making low-melting and highly refractive glass, and in treating skin infections. Atomic number 81; atomic weight 204.38; melting point 303.5°C; boiling point 1,457°C; specific gravity 11.85; valence 1, 3. See Periodic Table. |
| Tl
The symbol for thallium. |
| tl Tagalog |
| Tl thallium |
TL
|
Tl
(Tl), chemical element, metal of main Group IIIa, or boron group, of the periodic table, poisonous and of limited commercial value. Like lead, thallium is a soft, low-melting element of low tensile strength. Freshly cut thallium has a metallic lustre that dulls to bluish gray upon exposure to air. The metal continues to oxidize upon prolonged contact with air, generating a heavy nonprotective oxide crust. Thallium dissolves slowly in hydrochloric acid and dilute sulfuric acid and rapidly in nitric acid.
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