Home › Words › O › overstratumoverstratumoverstratum means A stratum or layer lying above another.Among words judged in Lexicurio's Arena, overstratum ranks #16,734 of 42,752 for Qualifying.EtymologyFrom over- + stratum.nounA stratum or layer lying above another.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.substratum 70% match — A layer that lies underneath another. vs overstratum →stratum 68% match — One of several parallel horizontal layers of material arranged one on top of another. vs overstratum →overlying 67% match — lying over or upon something else vs overstratum →epimetamorphic 66% match — Above a metamorphic stratum vs overstratum →superimposed 66% match — Positioned on or above something else, especially in layers; superposed vs overstratum →underlayer 65% match — A layer that is below another layer. vs overstratum →multistratous 65% match — Having many strata or layers. vs overstratum →adstrate 64% match — adstratum vs overstratum →