ACTIVIN BETA SUBUNITS
\ˈaktɪvˌɪn bˈiːtə sˈʌbjuːnˌɪts], \ˈaktɪvˌɪn bˈiːtə sˈʌbjuːnˌɪts], \ˈa_k_t_ɪ_v_ˌɪ_n b_ˈiː_t_ə s_ˈʌ_b_j_uː_n_ˌɪ_t_s]\
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.