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Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
sclera is a noun meaning "the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball". It carries one recorded sense.
the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for sclera come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.