Thallous

Definition:

• (a.) Of or pertaining to thallium; derived from, or containing, thallium; specifically, designating those compounds in which the element has a lower valence as contrasted with the thallic compounds.

Compare thallous with other words:

thallious vs. thallous

thallous vs. thallus

thallic vs. thallous

thallium vs. thallous