Perhaps, but the item "ablate" in "an ablate spheroid" is obviously not a verb, so it's hard to see how that's relevant.
"Ablate" isn't really well-formed for a verb, and indeed I see that the modern verb is a back-formation from the better-formed "ablation". If it had started as a verb, you'd expect "aufer", in the same way that we have the verb "offer" rather than "oblate".
Of course the meaning of "offer" doesn't tell you much about the meaning of "oblate", so once again it's hard to see why the meaning of the verb "ablate" should indicate anything about the meaning of a hypothetical adjective "ablate".