low-birth-weight baby is a noun meaning "an infant born weighing less than 5.5 pounds (2500 grams) regardless of gestational age". It carries one recorded sense.
an infant born weighing less than 5.5 pounds (2500 grams) regardless of gestational age
“a low-birth-weight infant is at risk for developing lack of oxygen during labor”
Definitions, synonyms and semantic relations for low-birth-weight baby come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.