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MAASH . A large trading vessel of the Nile.
MACE . A war-club of old.
MACHICOULIS . A projecting gallery over gateways, or walls insufficiently flanked: being open at the bottom between its supporting corbels, it allows of defending the foot of the wall.
MACKEREL . The _Scomber vulgaris_, a well-known sea-fish.
MACKEREL-BOAT . A stout clinch-worked vessel, with a large fore-sail, sprit-sail, and mizen.
MACKEREL-SKY . _See_ CIRRO-CUMULUS.
MACKEREL-STURE . A northern name for the tunny, _Scomber thynnus_.
MACULÆ . Dark temporary spots which are very frequently observed upon the sun's disc: they are of various forms, surrounded by a lighter shade or penumbra.
MAD . The state of a compass needle, the polarity of which has been injured.
MADDY, OR MADDIE . A large species of mussel abundant among the rocks of the western islands of Scotland and Wales.
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