Caryopsis

ботаника зерновка (тип плода)

Англо-русский научно-технический словарь

Caryopsis

noun (plural caryopses; also caryopsides) Etymology: New Latin a small one-seeded dry indehiscent fruit (as of Indian corn or wheat) in which the fruit and seed fuse in a single grain

Merriam-Webster's Collegiate Dictionary