How many letters does the top answer for “abnormally low blood pressure” have?

The most common answer is hypotension (11 letters).

Crossword clue: abnormally low blood pressure

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

hypotension 11 letters wn-def

abnormally low blood pressure

having abnormally low blood pressure 80% similar → hypotensive

a person who has abnormally low blood pressure 67% similar → hypotensive

having abnormally high blood pressure 50% similar → hypertensive