RECEPTOR OF THE FIRST ORDER

\ɹɪsˈɛptəɹ ɒvðə fˈɜːst ˈɔːdə], \ɹɪsˈɛptəɹ ɒvðə fˈɜːst ˈɔːdə], \ɹ_ɪ_s_ˈɛ_p_t_ə_ɹ ɒ_v_ð_ə f_ˈɜː_s_t ˈɔː_d_ə]\

Definitions of RECEPTOR OF THE FIRST ORDER