different between cataract vs keratome

English

Etymology

From Middle English cataract, cateract, cataracta, from Latin cataracta (“waterfall, portcullis”), from Ancient Greek ??????????? (katarrhákt?s), from ????????? (kataráss?, “I pour down”), from ????- (kata-, “down”) + ?????? (aráss?, “to strike, dash”). Its pathological sense probably came from its alternative sense in Latin, “portcullis”, through French through the notion of “obstruction”, in this case, of vision.

Pronunciation

• IPA^(key): /?kæt??ækt/

Noun

cataract (plural cataracts)

1. (obsolete) A waterspout
2. A large waterfall; steep rapids in a river.

3. A flood of water.

   (Can we add an example for this sense?)

4. (figuratively) An overwhelming downpour or rush.
5. (pathology) A clouding of the lens in the eye leading to a decrease in vision.

Derived terms

Translations

References

Further reading

• cataract on Wikipedia.Wikipedia
• List of waterfalls by type § Cataract on Wikipedia.Wikipedia

Dutch

Alternative forms

• katarakt (superseded)

Etymology

From Middle Dutch cataracte, from Latin cataracta, from Ancient Greek ??????????? (katarrhákt?s).

Pronunciation

• IPA^(key): /?ka?.ta??r?kt/
• Hyphenation: ca?ta?ract
• Rhymes: -?kt

Noun

cataract f (plural cataracten, diminutive cataractje n)

1. cataract, waterfall
2. (medicine) cataract

Synonyms

• (waterfall): waterval
• (cataract disease): grauwe staar

Descendants

• Afrikaans: katarak
• ? Indonesian: katarak

Middle English

Alternative forms

• cateract, cataracta, cataracte, catheracte, catharacte, catharacta, catterak, catarac

Etymology

From Latin cataracta, from Ancient Greek ?????????? (katarákt?s).

Pronunciation

• IPA^(key): /?kat?rakt(?)/, /?kat?rak/, /?kat?rakta/

Noun

cataract (plural cateractes)

1. (medicine) cataract
2. (Christianity) A gate guarding the entrance to Heaven.

Descendants

• English: cataract
• Scots: cataract (rare, obsolete)

References

• “cataracte, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 2018-04-20.

English

Etymology

kerato- +? -tome

Noun

keratome (plural keratomes)

1. A surgical instrument for dividing the cornea in cataract operations

Derived terms

• epikeratome
• microkeratome