SUCTORIAL Meaning of SUCTORIAL in English [ sʌk'tɔ:rɪəl ]■ adjective chiefly Zoology adapted for sucking. ↘(of an animal) having a sucker for feeding or adhering to something.Derivatives~ly adverb Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004