TOEFL eggshell Definition The hard, fragile outer layer of a bird's egg. Example "She carefully removed the eggshell after boiling the egg." Sign in to save TOEFL Quiz → ← effusive ego → Study tips featuring "eggshell" Map Each Word Into a Connected Network Track How TOEFL Words Behave With Others Group TOEFL Words Around Academic Themes Related words TOEFL brighten GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate GRE abduct SAT abet GRE abhor GRE abide SAT abject TOEFL ablaze