What is "thallic"

Thallic \Thal"lic\, a. (Chem.) Of or pertaining to thallium; derived from, or containing, thallium; specifically, designating those compounds in which the element has a higher valence as contrasted with the thallous compounds; as, thallic oxide.

a. 1 (context inorganic chemistry English) Pertaining to or containing the element thallium, especially with valence 3. 2 Pertaining to a thallus.

Thallic can refer to:

• Macrothallic, meaning large bodied - usually referring to Seaweed
• Thallus, an undifferentiated vegetative tissue of plants and fungi
• Thallic compound, a compound which contains thallium in the +3 oxidation state