lecturer

n. one who lectures; professor at an academic institution

United Kingdom Lecturers in the UK hold (for the most part permanent) positions in a university which involve carrying out both teaching and research. The term was originally used in contrast to Professor, which was an extremely prestigious and high ranking position typically held by only one or a very few in a department, and Readers. Neither position traditionally required any teaching, although normally professors or readers would do so at least occasionally by choice.
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Noun
1. a public lecturer at certain universities
(synonym) lector, reader
(hypernym) educator, pedagogue
(derivation) lecture, talk
2. someone who lectures professionally
(hypernym) speaker, talker, utterer, verbalizer, verbaliser
(hyponym) Keller, Helen Keller, Helen Adams Keller
(derivation) lecture, talk

(n.)
One who lectures; an assistant preacher.
  

n.
درس کرنے والا, مضمون پڑھنے والا, ليکچرار