MACROCYSTIS
Mac`ro*cys"tis, n. Etym: [NL. See Macro-, and Cyst.] (Bot.)
Defn: An immensely long blackish seaweed of the Pacific (Macrocystis pyrifera), having numerous almond-shaped air vessels.
MACRODACTYL
Mac`ro*dac"tyl, n. Etym: [Gr. macrodactyle.] (Zoöl.)
Defn: One of a group of wading birds (Macrodactyli) having very long toes. [Written also macrodactyle.]
MACRODACTYLIC; MACRODACTYLOUS
Mac`ro*dac*tyl"ic, Mac`ro*dac"tyl*ous, a. (Zoöl.)
Defn: Having long toes.
MACRODIAGONAL
Mac`ro*di*ag"o*nal, n. Etym: [Macro- + diagonal.] (Crystallog.)
Defn: The longer of two diagonals, as of a rhombic prism. See
Crystallization.
MACRODOME
Mac"ro*dome, n. Etym: [Macro- + dome.] (Crystallog.)
Defn: A dome parallel to the longer lateral axis of an orthorhombic crystal. See Dome, n., 4.