You searched for:
“isogram”
isogram
A proposed general term for lines on a diagram, etc. indicating equality of some physical condition or quantity, as isotherms, isobars, etc.
This entry is located in the following units:
gram-, -gram-, -gram, -grammatic, -grammatical, -grammatically, -gramme, -grammic +
(page 12)
iso-, is-
(page 4)