Words Containing: B,A,R,S,O,A,P

• a recording barometer; automatically records on paper the variations in atmospheric pressure

• a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below

• cover with clapboards

• approve or sanction officially

• accept (documents) as valid

• stiff cardboard made by pasting together layers of paper

• writing board used on the lap as a table or desk

• The (natural or surgical) union of parts of two organisms, especially in such a way as to cause them to share their vascular systems. Organisms so joined then are called parabionts.

• The fusion of two embryos to form conjoined twins

• A transient physiological state of suspension of obvious vital activities such as to enable an organism to escape the notice of its enemies or to conserve its energy.

• A form of symbiosis, typically among ants, in which different species share common nest galleries but maintain distinct broods and do not practice mutualism other than incidentally.

• An alien form of life within an organism, commonly invasive, such as a growing cancer.