12-Letter Words Containing: B,R,O,C,H

• a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing

• a board having 64 squares of two alternating colors

• orchid growing along streams or ponds of western North America having leafy stems and 1 greenish-brown and pinkish flower in the axil of each upper leaf

• an obnoxious and foolish and loquacious talker

• a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone

• a vagrant living on a beach

• the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry

• tiny bits of protoplasm found in vertebrate blood; essential for blood clotting