Middle English Dictionary Entry

superficiā̆l adj.
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Entry Info

Definitions (Senses and Subsenses)

1.
(a) On or at the surface of the skin, body, a boiling liquid, etc.; external; also, as noun: an outer surface or part; (b) without thorough understanding, cursory; (c) unimportant, insignificant; (d) anat. of a suture or seam of the skull: smooth, not serrated; (e) math. of a number: composed of two different prime numbers multiplied together; also, geom. pertaining to a two-dimensional plane surface [quot. c1450, last occurrence].

Supplemental Materials (draft)

Note: Correction--revise gloss in sense 1.(e) [quot.(a1398) *Trev. Barth. (Add 27944) 328a/a]: "of a number: a whole number whose units, each represented by a symbol (e.g., a dot) may be set out in a regular pattern to form certain plane figures; ~ superficial." Cp. thre-cornered ~, etc.