||Mac`ro*glos"si*a (?), n. [NL. See Macro-, and Glossa.] (Med.)
||Enlargement or hypertrophy of the tongue.
Mac`rog*nath"ic (?), a. [Macro- + gnathic.] (Anthropol.) Long-jawed.
Huxley.
Ma*crol"o*gy (?), n. [L. macrologia, Gr. &?;; &?; long + lo`gos
discourse: cf. F. macrologie.] Long and tedious talk without much
substance; superfluity of words.
Ma*crom"e*ter (?), n. [Macro- + -meter.] An instrument for determining
the size or distance of inaccessible objects by means of two reflectors
on a common sextant.
Ma"cron (?), n. [NL., fr. Gr. &?; long.] (Pron.) A short, straight,
horizontal mark [-], placed over vowels to denote that they are to be
pronounced with a long sound; as, , in dme; , in sam, etc.
Mac`ro*pet"al*ous (?), a. [Macro- + petal.] (Bot.) Having long or
large petals.
Ma*croph"yl*lous (?), a. [Macro- + Gr. &?; a leaf.] (Bot.) Having long
or large leaves.
Mac`ro*pin"a*coid (?), n. [Macro- + pinacoid.] (Crystallog.) One of
the two planes of an orthorhombic crystal which are parallel to the
vertical and longer lateral (macrodiagonal) axes.
Mac"ro*pod (?), n. [Macro- + -pod.] (Zoöl.) Any one of a group of
maioid crabs remarkable for the length of their legs; -- called also
spider crab.
Ma*crop"o*dal (?), a. Having long or large feet, or a long stem.
Mac`ro*po"di*an (?), n. A macropod.
Ma*crop"o*dous (?), a. (Zoöl.) Having long legs or feet.
Mac"ro*prism (?), n. [Macro- + prism.] (Crystallog.) A prism of an
orthorhombic crystal between the macropinacoid and the unit prism; the
corresponding pyramids are called macropyramids.
||Ma*crop"te*res (?), n. pl. [NL., fr. Gr. &?; long + &?; feather,
||wing.] (Zoöl.) A division of birds; the Longipennes.
Ma*crop"ter*ous (?), a. [See Macropteres.] (Zoöl.) Having long wings.
||Mac"ro*pus (?), n. [NL. See Macropod.] (Zoöl.) A genus of marsupials
||including the common kangaroo.
Mac`ro*pyr"a*mid (?), n. [Macro- + pyramid.] (Crystallog.) See
Macroprism.
{ Mac`ro*scop"ic (?), Mac`ro*scop"ic*al (?), } a. [Macro- + Gr. &?; to
view.] Visible to the unassisted eye; -- as opposed to microscopic. --
Mac`ro*scop"ic*al*ly, adv.
||Mac`ro*spo*ran"gi*um (?), n. [NL. See Macro-, and Sporangium.] (Bot.)
||A sporangium or conceptacle containing only large spores; -- opposed
||to microsporangium. Both are found in the genera Selaginella,
||Isoctes, and Marsilia, plants remotely allied to ferns.
Mac"ro*spore (?), n. [Macro- + spore.] (Bot.) One of the specially
large spores of certain flowerless plants, as Selaginella, etc.
Mac`ro*spor"ic (?), a. (Bot.) Of or pertaining to macrospores.
Mac"ro*tone (?), n. [Gr. &?; stretched out. See Macro-, and Tone.]
(Pron.) Same as Macron.
Ma*cro"tous (?), a. [Macro- + Gr. o"y^s, gen. 'wto`s, the ear.] (Zoöl.)
Large-eared.
||Ma*crou"ra (?), n. pl., Ma*crou"ral (&?;), a., etc. (Zoöl.) Same as
||Macrura, Macrural, etc.
Mac`ro*zo"ö*spore (?), n. [Macro- + zoöspore.] (Bot.) A large motile
spore having four vibratile cilia; -- found in certain green algæ.
||Ma*cru"ra (?), n. pl. [NL., fr. Gr. &?; long + &?; tail.] (Zoöl.) A
||subdivision of decapod Crustacea, having the abdomen largely
||developed. It includes the lobster, prawn, shrimp, and many similar
||forms. Cf. Decapoda.
Ma*cru"ral (?), a. (Zoöl.) Same as Macrurous.
Ma*cru"ran (?), n. (Zoöl.) One of the Macrura.
Ma*cru"roid (?), a. [Macrura + -oid.] (Zoöl.) Like or pertaining to the
Macrura.
Ma*cru"rous (?), a. (Zoöl.) Of or pertaining to the Macrura; having a
long tail.
Mac*ta"tion (?), n. [L. mactatio, fr. macture to slay, sacrifice.] The
act of killing a victim for sacrifice. [Obs.]
||Mac"tra (?), n. [NL., fr. Gr. &?; kneading trough, fr. &?; to knead.]
||(Zoöl.) Any marine bivalve shell of the genus Mactra, and allied
||genera. Many species are known. Some of them are used as food, as
||Mactra stultorum, of Europe. See Surf clam, under Surf.
||Mac"u*la (?), n.; pl. Maculæ (#). [L., spot, stain, blot. See Mail
||armor, and cf. Mackle, Macule.] 1. A spot, as on the skin, or on the
||surface of the sun or of some other luminous orb.