Rudimentary+seed
131pirarucu — /pi rahr euh kooh /, n. the arapaima. [1830 40; < Pg < Tupi pirá rucú lit., red fish] * * * ▪ fish also called arapaima or paiche ancient, air breathing, giant fish of Amazonian rivers and lakes. One of the largest freshwater fishes in …
132prothallium — prothallial, prothallic, prothalline /proh thal een, uyn/, adj. prothalloid, adj. /proh thal ee euhm/, n., pl. prothallia / thal ee euh/. 1. Bot. the gametophyte of ferns and related plants. 2. the analogous rudimentary gametophyte of seed… …