Fair, but we were not discussing providing definitions using laymen terms. We were discussing using words in reformulations of titles of articles posted on HN. I expect people on HN to be able to deal with a title containing an unfamiliar word and seek either a precise or a laymens terms definition when needed.
> Provide an alternative title for "Updated imaging and phylogenetic comparative methods reassess relative temporal lobe size in anthropoids and modern humans" so that layman people would understand.