It is a dense, lustrous grey metal.
Made from the indigestible parts of squid eaten by sperm whales, and usually released only when the poor whale dies from a blocked and ruptured intestine and has been picked apart by the sea's scavengers, ambergris matures as it floats in the brine from a tarry black dung to a dense, pungent grey substance with the texture of soft, waxy stone.
Nevertheless, I noticed something at the time that I could learn from - the poem slowed down whenever it mentioned them: "huge in the dense grey", "megalith-still", "making no move"... It's like a three beat theme tune.
Film footage on the BBC showed flames ravaging the two-story white walled pavilion at the end of the pier and dense grey clouds of smoke rising up into the blue summer sky over the small seaside town.
Criteria for determining scan quality include (1) a clear fundus image before and during image acquisition, (2) absence of scan or algorithm failures, (3) even and dense grey scale saturation throughout all retinal layers with dense grey visible in the RPE, and (4) the RNFL visible without missing or blank areas and a continuous scan pattern.
My favourites were the dense, grey-green of the glaucous Scots pine (Pinus sylvestris 'Glauca') in Nick Bailey's Winton's Beauty Of Mathematics garden, and Sam Ovens' looser, less controlled dwarf mountain pine (Pinus mugo) in the Cloudy Bay garden (right down to a broken branch on the ground; Ovens had to keep stopping people from tidying it away).
Upon hatching, the chicks are semi-precocial, having open eyes, a dense covering of white or grey down feathers, and the ability to move around the nesting site.
It is generally grey in colour, and has a dense, waterproof coat that protects it in harsh weather.
The different degree of reactive astrocytic gliosis occurring in the white matter compared to grey matter might indicate that protoplasmic astrocytes (in the grey matter) are less capable of forming a dense reactive astrocytic gliosis as fibrous astrocytes (in the white matter).
Mammogram (a, b) reveals a dense partially circumscribed mass in the upper outer quadrant with associated microcalcifications. c Grey-scale ultrasound shows a hypoechoic ill-defined mass with hyperechoic foci of microcalcifications. d Power Doppler shows internal vascularity.
