...There seemed to be an opaque barrier above him, andthis barrier seemed to be slowly descending... 
Various 「Astounding Stories, August, 1931」
...Finally he went off roaring and grittinghis teeth, but turning back to cast on me fromtime to time the deadly, opaque green light of hismad, malignant eyes...
Ernest Thompson Seton 「Wild Animals at Home」
...Wings opaque, entire...
William Swainson 「Zoological Illustrations, Volume I」
...This genus was instituted by Scopoli many years ago, and differs principally from Sesia by having opaque wings, and from Thyreus by the very great difference in the construction of their antennæ...
William Swainson 「Zoological Illustrations, Volume I」
...The eyes lose their transparency, the surface is white and opaque, thesight is impaired, and the lids are nearly constantly closed...
Dinks, Mayhew, and Hutchinson 「The Dog」
...The medulla consists of cellscontaining pigment or fat, is opaque, and deeply colored...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...To the same niche; and builds himself an opaque walled house within that...
John Ruskin 「Love's Meinie」
...Membranule: the small opaque expansion at base of wingsin Odonata...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Pterostigma: a thickened, opaque spot on the costalmargin of a wing, near its middle or at end of the radius: =bathmis, and see stigma...
John. B. Smith 「Explanation of Terms Used in Entomology」
...What would happen if I imprisoned her in an opaque receptacle?Would not such a receptacle arrest or set free the informing effluviaaccording to its nature?...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...She hastens to the test tube whose contents are veiled under an opaque cover with the same alacrity as to the open tube...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...An extremely thin opaque thread runs down either side...
J. Henri Fabre 「Bramble-bees and Others」
...Thisquestion interestedme very much; the only method of deciding it was to observe the wormswhile spinning, which cannot be done in their opaque cells...
Francis Huber Anonymous 「New observations on the natural history of bees」
...In a knot of the network is contained the dark, stiff, opaque nuclearcorpuscle or nucleolus...
Ernst Haeckel 「The Evolution of Man」
...When weexamine the opaque, grey, brown, or blackish ova closely, we find that theupper half is darker than the lower...
Ernst Haeckel 「The Evolution of Man」
...At the same time, the ovalform of the germinative area returns to a circular shape, and the innerpellucid area separates more clearly from the opaque outer area (Fig...
Ernst Haeckel 「The Evolution of Man」
...In the Rhodian Ware the same scheme of colour prevails, except that thepurple is replaced by a fine opaque red of great body, called Rhodianred, produced from Armenian bole...
Richard Glazier 「A Manual of Historic Ornament」
...This is formed by the additionof oxide of tin to a silicious glaze or slip, thus rendering it whiteand opaque, hence its name, enamel...
Richard Glazier 「A Manual of Historic Ornament」
...Thisis useful to suggest the opaque appearance of the darker passagethat occurs in that part of a shadow nearest the lights; and it issometimes used in the half tones also...
Harold Speed 「The Practice and Science Of Drawing」
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