Umbel, um′bel, n. a form of flower in which a number of stalks, each bearing a flower, radiate from one centre.—adjs. Um′bellate, -d, bearing umbels.—n. Umbell′ifer, any plant of the parsley family.—adj. Umbellif′erous, bearing or producing umbels.—n. Um′bellule, a secondary umbel. [L. umbella, dim. of umbra, a shade.]
Umber, um′bėr, n. a brown earthy mineral used as a pigment.—adjs. Um′bered, tinged with umber; Um′bery, relating to, or like, umber. [Umbria.]
Umbilic, -al, um-bil′ik, -al, adj. pertaining to the navel.—adjs. Umbil′icate, -d, navel-shaped.—n. Umbil′icus, the navel: a depression at the axial base of a spiral shell, as in many gasteropods.—Umbilical cord, the navel-string; Umbilical duct, the passage connecting the umbilical vesicle with the primitive intestine; Umbilical hernia, the protrusion of a part through or near the umbilicus; Umbilical region, the middle portion of the abdomen. [L. umbilīcus, the navel; Gr. omphalos.]
Umbles, um′blz, n.pl. the entrails of a deer.—n. Um′ble-pie (see Humble-pie). [O. Fr. nombles (with initial n for l), from lomble—le, the article, omble—L. umbilicus, the navel. The Eng. form numbles, by loss of initial n, as in numpire, &c., became umbles, sometimes written humbles, whence humble-pie, now associated in popular etymology and meaning with humble=low.]
Umbo, um′bō, n. the boss of a shield: a knob: the point of a bivalve shell immediately above the hinge:—pl. Umbō′nes, Um′bos.—adjs. Um′bōnal, protuberant; Um′bōnāte, -d (bot.), having a central umbo, boss, or low rounded projection.—n. Umbonā′tion.—adjs. Umbon′ic; Umbon′ulate. [L.]
Umbra, um′bra, n. a shadow: (astron.) the dark cone projected from a planet or satellite on the side opposite to the sun: an uninvited guest whom an invited one brings with him: one of the Umbridæ, the mud-minnows: a sciænoid fish, the umbrine.—adjs. Um′bral, pertaining to an umbra; Um′brāted (her.), shadowed; (obs.) Umbrat′ic, -al, Um′bratile, shadowy, secluded.—ns. Umbrā′tion, adumbration; Um′brere, Um′briere (Spens.), the visor of a helmet.—adj. Umbrif′erous, casting a shade. [L.]
Umbraculum, um-brak′ū-lum, n. (bot.) any umbrella-shaped appendage, as the cap borne on the seta of Marchantia.—adjs. Umbrac′ulate, nearly covered by a projecting process, as the face of some Orthoptera; Umbraculif′erous, bearing an umbraculum; Umbrac′uliform, having the general form of an umbrella, as a mushroom.
Umbrage, um′brāj, n. suspicion of injury: offence: a shade of foliage: a slight appearance.—v.t. to shade.—adj. Umbrā′geous, shady or forming a shade.—adv. Umbrā′geously.—n. Umbrā′geousness. [Fr. ombrage—L. umbra, a shadow.]
Umbrella, um-brel′a, n. a familiar covered sliding frame carried in the hand, as a screen from rain or sunshine.—n. Umbrell′a-bird, a fruit-crow of South America, so called from its radiating crest.—adj. Umbrellaed (um-brel′äd), provided with an umbrella.—ns. Umbrell′a-grass, an Australian grass with millet-like seeds; Umbrell′a-stand, a stand in the hall of a house for holding umbrellas; Umbrell′a-tree, a small magnolia of the United States. [It. ombrella, dim. of ombra, a shade—L. umbra.]
Umbrette, um-bret′, n. the umber-bird, found in Africa and Madagascar, remarkable for the enormous domed nest which it builds.