Macaranga gum
definition: A gum of a crimson color
Obtained from a tree (Macaranga Indica) that grows in the East Indies. It is used in taking impressions of coins medallions etc. and sometimes as a medicine.
Macaranga gum is a 13 letter word that begins with an M and ends in an M

Macedonianism (n.)
definition: The doctrines of Macedonius.

Macedonianism is a 13 letter word that begins with an M and ends in an M

Machicolation (n.)
definition: An opening between the corbels which support a projecting parapet
Or in the floor of a gallery or the roof of a portal shooting or dropping missiles upen assailants attacking the base of the walls. Also the construction of such defenses in general when of this character. See Illusts. of Battlement and Castle.
Machicolation is a 13 letter word that begins with an M and ends in an N

Machicolation (n.)
definition: The act of discharging missiles or pouring burning or melted substances upon assailants through such apertures.

Machicolation is a 13 letter word that begins with an M and ends in an N

Macrodactylic (a.)
definition: Alt. of Macrodactylous

Macrodactylic is a 13 letter word that begins with an M and ends in a C

Macrodiagonal (n.)
definition: The longer of two diagonals
As of a rhombic prism. See Crystallization.
Macrodiagonal is a 13 letter word that begins with an M and ends in an L

Macropetalous (a.)
definition: Having long or large petals.

Macropetalous is a 13 letter word that begins with an M and ends in an S

Macrophyllous (a.)
definition: Having long or large leaves.

Macrophyllous is a 13 letter word that begins with an M and ends in an S

Macropinacoid (n.)
definition: One of the two planes of an orthorhombic crystal which are parallel to the vertical and longer lateral (macrodiagonal) axes.

Macropinacoid is a 13 letter word that begins with an M and ends in a D

Macroscopical (a.)
definition: Visible to the unassisted eye; -- as opposed to microscopic.

Macroscopical is a 13 letter word that begins with an M and ends in an L

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