Prochloron
noun, Biology.
1.
any spherical, photosynthetic, prokaryotic microorganism of the genus Prochloron, occurring in subtropical and tropical habitats in symbiosis with various invertebrates, especially marine chordates, proposed as ancestral to the chloroplast of green algae and plants.
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adjective 1. supporting or advocating legalized abortion. adjective 1. (of an organization, pressure group, etc) supporting the right of a woman to have an abortion Compare pro-life
 - Prochondral  
prochondral pro·chon·dral (prō-kŏn’drəl) adj. Of or relating to a stage of embryonic development that precedes formation of cartilage.
 - Prochoos  
noun, plural prochooi [proh-koh-oi, prok-oh-] /ˈproʊ koʊˌɔɪ, ˈprɒk oʊ-/ (Show IPA). Greek and Roman Antiquity. 1. an elongated form of the oinochoe.
 - Prochronism  
noun 1. a chronological error in which a person, event, etc., is assigned a date earlier than the actual one; prolepsis. noun 1. an error in dating that places an event earlier than it actually occurred Compare parachronism
 - Prochymosin  
prochymosin pro·chy·mo·sin (prō-kī’mə-sĭn) n. The precursor of chymosin. Also called prorennin, renninogen.
 
