Word: ad.
Part of speech: Noun
Syllables: ad
act
Definition: abbreviation of adaptation; the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)
Morphemes:
Affix: ad.
Language: en
PoS: Noun
Meaning: abbreviation of adaptation; the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)