THERMOTROPISM Meaning of THERMOTROPISM in English [ ˌθə:mə(ʊ)'trəʊpɪz(ə)m ]■ noun Biology the orientation of a plant or other organism in response to a source of heat.Derivativesthermotropic adjective Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004