Английский разговорный словарь (основной) - cotyledon
Cotyledon
cotyledon
ˌkɔtɪˈli:dən n. 1 an embryonic leaf in seed-bearing plants. 2 anysucculentplant of thegenusUmbilicus, e.g. pennywort. øøcotyledonary adj. cotyledonous adj. [L, = pennywort, f. Gk kotuledon cup-shaped cavity f. kotule cup]