lithide noun1 •A hypothetical alkalide with lithium as the anion.The measured stabilities of the group IVa-lithides are compared with values calculated according to Pauling's rule: D(A-B) - 1/2[D(A-A) + D(B-B)] + 23(x_A-x_B)² kcal/mol in Table III. — 1981 formslithides