Macrocephalous, mak-ro-sef′a-lus, adj. having a large or long head.—Also Macrocephal′ic. [Gr. makros, long or great, kephalē, a head.]

Macrocosm, mak′ro-kozm, n. the great world: the whole universe:—opp. to Microcosm.—adj. Macrocos′mic. [Gr. makros, long, kosmos, world.]

Macrodactyl, mak-ro-dak′til, adj. having long toes.—n. a wading-bird having such:—pl. Macrodac′tylī, and -a. [Gr. makros, long, daktylos, finger.]

Macrology, mak-rol′o-ji, n. much talk with little to say. [Gr. makros, long, logos, a word.]

Macron, mak′ron, n. a straight line placed over a vowel to show that it is long:—opp. to Breve, the mark of a short vowel. [Gr., 'long.']

Macropod, mak′ro-pod, adj. having long feet.—n. a long-legged or long-footed animal: one of the spider-crabs.—adjs. Macrop′odal, Macrop′odan, Macropō′dian, Macrop′odous (bot.). [Gr. makros, long, pous, podos, a foot.]

Macropterous, mak-rop′te-rus, adj. long-winged. [Gr. makros, long, pteron, a wing.]

Macroscian, mak-ros′i-an, adj. casting a long shadow.—n. an inhabitant of the Arctic or Antarctic zones. [Gr. makros, long, skia, shadow.]

Macroscopic, mak-ro-skop′ik, adj. visible to the naked eye:—opp. to Microscopic.—adv. Macroscop′ically. [Gr. makros, long, skopein, to see.]

Macrospore, mak′ro-spōr, n. a more than usually large spore of a flowerless plant, as in club-mosses, &c.—n. Macrosporan′gium, a sporangium containing macrospores. [Gr. makros, long, spora, a seed.]