Word: blacklights
Part of speech: Noun
Syllables: black
lights
Definition: Plural of blacklight;   is a lamp that emits long-wave (UV-A) ultraviolet light and very little visible light
Morphemes:
Affix: black
Language: en
PoS: Adjective
Meaning: Absorbing all light and reflecting none; dark and hueless.
Affix: light
Language: en
PoS: Noun
Meaning: A source of illumination.
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.