Difference between opening and spiracle
- becoming open or being made open
- a ceremony accompanying the start of some enterprise
- a recognized sequence of moves at the beginning of a game of chess
- the first of a series of actions
- opportunity especially for employment or promotion
- first or beginning
The beak is smoth, black, convex and cultrated; one and 1/8 inches from the point to the opening of the chaps and 3/4 only uncovered with feathers; the upper chap exceeds the other a little in length. a few small black hairs garnish the sides of the base of the upper chap. the eye is of a uniform deep sea green or black, moderately large. it's legs feet and tallons are white; the legs are an inch and a 1/4 in length and smoth; four toes on each foot, of which that in front is the same length with the leg including the length of the tallon, which is 4 lines; the three remaining toes are
Clearly the megalosaurus in the opening passage of Bleak House is a flight of hyperbolic fancy (inspired, I would guess, by the papier-mâché dinosaurs constructed for the Crystal Palace Exhibition, a couple of years earlier).
The openings permit solid and semi-solid bodily exudates to pass through the top sheet to the absorbent core as the diaper is worn.
- a breathing orifice
Laparostict: that series of lamellicorn beetles in which the abdominal spiracles are situated on the connecting membrane between the dorsal and ventral rings.
Catsharks have moderately large spiracles, or respiratory openings, and five pairs of gill slits.
There is a hole called a spiracle behind each eye.