n. (Chem.) An organic base, especially one of a class of nitrogen-containing substances occurring ready formed in the tissues of plants and the bodies of animals. [ 1913 Webster ]
☞ Alkaloids all contain nitrogen, carbon, and hydrogen, and many of them also contain oxygen. They include many of the active principles in plants; thus, morphine and narcotine are alkaloids found in opium. [ 1913 Webster ]
n. (Chem.) A bitter purgative principle in aloes. [ 1913 Webster ]
n. [ Gr. &unr_; almond + -oid: cf. F. amygdaloïde. ] (Min.) A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava. [ 1913 Webster ]
n.
Amyloid degeneration (Med.),
n. (Med.) A disorder characterized by deposit of extracellular amyloid{ 2 } in organs or tissues in an amount that interferes with normal function of the affected organ; it is often secondary to chronic rheumatoid arthritis or tuberculosis or multiple myeloma. Called also
n. [ F. annelé ringed + -oid. ] (Zool.) An animal resembling an annelid. [ 1913 Webster ]
a. (Zool.) Of or pertaining to the Annuloida. [ 1913 Webster ]
‖n. pl. [ NL., fr. L. annulus ring + -oid. ] (Zool.) A division of the Articulata, including the annelids and allied groups; sometimes made to include also the helminths and echinoderms.
n. (Med.) A remedy against the plague. Brande & C. [ 1913 Webster ]
a. [ Astragalus + -oid. ] (Anat.) Resembling the astragalus in form. [ 1913 Webster ]
‖n. pl. [ NL., fr. Gr.
n. [ Beryl + -oid. ] (Crystallog.) A solid consisting of a double twelve-sided pyramid; -- so called because the planes of this form occur on crystals of beryl. [ 1913 Webster ]
adj.
n. [ Cellulose + -oid. ] A substance composed essentially of gun cotton and camphor, and when pure resembling ivory in texture and color, but variously colored to imitate coral, tortoise shell, amber, malachite, etc. It is used in the manufacture of jewelry and many small articles, as combs, brushes, collars, and cuffs; -- originally called
a. [ Cephalo- + -oid. ] Shaped like the head. Craing. [ 1913 Webster ]
‖a. [ F., partitioned, fr. cloison a partition. ] Inlaid between partitions: -- said of enamel when the lines which divide the different patches of fields are composed of a kind of metal wire secured to the ground; as distinguished from
v. t.
None among them are thought worthy to be styled religious persons but those that cloister themselves up in a monastery. Sharp. [ 1913 Webster ]
n. [ OF. cloistre, F. cloître, L. claustrum, pl. claustra, bar, bolt, bounds, fr. claudere, clausum, to close. See Close, v. t., and cf. Claustral. ] [ 1913 Webster ]
But let my due feet never fail
To walk the studious cloister's pale. Milton. [ 1913 Webster ]
Fitter for a cloister than a crown. Daniel. [ 1913 Webster ]
Cloister garth (Arch.),
a. Cloistral. [ Obs. ] I. Walton. [ 1913 Webster ]
a.
In cloistered state let selfish sages dwell,
Proud that their heart is narrow as their cell. Shenstone. [ 1913 Webster ]
n. [ Cf. OF. cloistier. ] One belonging to, or living in, a cloister; a recluse. [ 1913 Webster ]
a. Of, pertaining to, or confined in, a cloister; recluse.
Best become a cloistral exercise. Daniel. [ 1913 Webster ]
n. A nun. [ R. ] Shak. [ 1913 Webster ]
a. [ Gr.
n.
Styptic colloid (Med.),
a. Pertaining to, or of the nature of, colloids. [ 1913 Webster ]
n. The state or quality of being colloidal. [ 1913 Webster ]
‖n. A Muslim rosary, consisting of ninety-nine beads. Byron. [ 1913 Webster ]
a. [ Condyle + -oid: cf. F. condyloïde. ] (Anat.) Shaped like or pertaining to a condyle. [ 1913 Webster ]
a. [ L. corallum coral + -oid: cf. F. coralloïde. ] Having the form of coral; branching like coral. [ 1913 Webster ]
a. resembling coral; coralloid. Sir T. browne. [ 1913 Webster ]
‖n. [ F., a strainer. ]
a. [ Gr.
n.
a. [ L.cuculus a cuckoo + -oid. ] (Zool.) Like or belonging to the cuckoos (
a. [ NL. cyathophyllum, fr. Gr.
n. (Paleon.) A fossil coral of the family
n. [ Cyclo- + -oid: cf. F. cycloïde. ] (Geom.) A curve generated by a point in the plane of a circle when the circle is rolled along a straight line, keeping always in the same plane. [ 1913 Webster ]
☞ The common cycloid is the curve described when the generating point (p) is on the circumference of the generating circle; the curtate cycloid, when that point lies without the circumference; the prolate or inflected cycloid, when the generating point (p) lies within that circumference. [ 1913 Webster ]
a. (Zool.) Of or pertaining to the Cycloidei. [ 1913 Webster ]
Cycloid scale (Zool.),
n. (Zool.) One of the Cycloidei. [ 1913 Webster ]
a. Pertaining to, or resembling, a cycloid;
Cycloidal engine.
‖n. pl. [ NL., fr. Gr.
a. & n. (Zool.) Same as 2d and 3d Cycloid. [ 1913 Webster ]
n. [ Cf. Exploitation, Deploy. ] Same as Exploitation. [ 1913 Webster ]
a. (Anat.) Of or pertaining to the diploë. [ 1913 Webster ]
n. [ Gr.
A: I'm not interested in diploids.
B: Oh, how I wish your parents had felt the same way!