Word: keratometers
Part of speech: Noun
Syllables: ke
ra
to
me
ters
Definition: Plural of keratometer;  is a diagnostic instrument for measuring the curvature of the anterior surface of the cornea, particularly for assessing the extent and axis of astigmatism
Morphemes:
Affix: kerato-
Language: en
PoS: Prefix
Meaning: cornea; the transparent dome-shaped anterior portion of the outer covering of the eye; it covers the iris and pupil and is continuous with the sclera
Etymology Compounds: Affix: κέρας
Language: grc
Decoded: keras
Meaning: horn
Affix: -meter
Language: en
PoS: Suffix
Meaning: Used to form the names of measuring devices.
Etymology Compounds: Affix: meh₁-
Language: ine-pro
Decoded: meh1-
Meaning: to measure
Affix: -τρον
Language: grc
Decoded: -tron
PoS: Suffix
Meaning: Forms instrument nouns
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form the plural of nouns that correctly take just an "s" in the plural. See greengrocer’s apostrophe.