ARGILLACEOUS ROCK
\ˌɑːɡɪlˈe͡ɪʃəs ɹˈɒk], \ˌɑːɡɪlˈeɪʃəs ɹˈɒk], \ˌɑː_ɡ_ɪ_l_ˈeɪ_ʃ_ə_s ɹ_ˈɒ_k]\
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.