ULTRA- a.
A prefix from the Latin ultra beyond (see Ulterior), having in composition the signification beyond, on the other side, chiefly when joined with words expressing relations of place; as, ultramarine, ultramontane, ultramundane, ultratropical, etc. In other relations it has the sense of excessively, exceedingly, beyond w…
THISTLE n.
le. -- Star thistle, a species of Centaurea. See Centaurea. -- Torch thistle, a candelabra-shaped plant of the genus Cereus. See Cereus. -- Yellow thistle, Cincus horridulus. Thistle bird (Zoöl.), the American goldfinch, or yellow-bird (Spinus tristis); -- so called on account of its feeding on the seeds of thistles…