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Pupil vs Crystalline - What's the difference?

pupil | crystalline |

As nouns the difference between pupil and crystalline

is that pupil is (legal|obsolete) an orphan who is a minor and under the protection of the state or pupil can be (anatomy) the hole in the middle of the iris of the eye, through which light passes to be focused on the retina while crystalline is (obsolete) any crystalline substance.

As an adjective crystalline is

of, relating to, or composed of crystals.

pupil

English

Etymology 1

From (etyl) .

Noun

(en noun)
  • (legal, obsolete) An orphan who is a minor and under the protection of the state.
  • (senseid)A student under the supervision of a teacher or professor.
  • * 1668 December 19, , “Mr.'' Alexander Seaton ''contra'' Menzies” in ''The Deci?ions of the Lords of Council & Se??ion I (Edinburgh, 1683), page 575
  • The Pupil after his Pupillarity, had granted a Di?charge to one of the Co-tutors, which did extingui?h the whole Debt of that Co-tutor, and con?equently of all the re?t, they being all correi debendi , lyable by one individual Obligation, which cannot be Di?charged as to one, and ?tand as to all the re?t.
  • * {{quote-magazine, date=2013-07-19, author=(Peter Wilby)
  • , volume=189, issue=6, page=30, magazine=(The Guardian Weekly) , title= Finland spreads word on schools , passage=Imagine a country where children do nothing but play until they start compulsory schooling at age seven. Then, without exception, they attend comprehensives until the age of 16. Charging school fees is illegal, and so is sorting pupils into ability groups by streaming or setting.}}

    Etymology 2

    (wikipedia pupil) From (etyl) pupille, from (etyl) , named because of the small reflected image seen when looking into someone's eye.

    Noun

    (en noun)
  • (anatomy) The hole in the middle of the iris of the eye, through which light passes to be focused on the retina.
  • Why did your pupils dilate when you saw me topless? Do you like me or something?
    Derived terms
    * pupilar * pupilary * pupillary 1000 English basic words ----

    crystalline

    English

    Adjective

    (en adjective)
  • of, relating to, or composed of crystals
  • (chemistry) having a regular three-dimensional molecular structure
  • resembling crystal in being clear and transparent
  • Antonyms

    * amorphous

    Noun

    (en noun)
  • (obsolete) Any crystalline substance.
  • (obsolete) aniline
  • ----