CONCAVE POLYGON
\kɒnkˈe͡ɪv pˈɒlɪɡən], \kɒnkˈeɪv pˈɒlɪɡən], \k_ɒ_n_k_ˈeɪ_v p_ˈɒ_l_ɪ_ɡ_ə_n]\
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.