CONCEPTUS Scrabble 15 Words With Friends 20 Definition noun an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life. — synonyms: embryo, fertilized_egg See all 235 words you can make from CONCEPTUS → 9-letter words Words starting with C Words ending with S ← Unscramble different letters