单词 trappoid 释义 trappoid, a. Min.|trpd|[f. trap n.5 + -oid.]Resembling or allied to trap-rock.1842in Phillips Man. Geol. (1855) 250 Upon this lies an often trappoid or magnesian conglomerate.1854Murchison Siluria xiii. 334 A reaggregated trappoid brec...