As a noun chorioallantois

is (anatomy) the vascular extraembryonic membrane, formed by the fusion of the allantois and the chorion, that makes up the placenta in most mammals; the chorioallantoic membrane.

As an adjective chorioallantoic is

of or pertaining to the chorioallantois.

As a noun ocean

is ocean.

As an adjective bathypelagic is

of or pertaining to the parts of the oceans at depths between 1000 and 4000 meters deep.

Bathypelagic is a related term of epipelagic.

As adjectives the difference between epipelagic and bathypelagic

is that epipelagic is of, pertaining to, or inhabiting the water from the surface of the sea down to 200 metres while bathypelagic is of or pertaining to the parts of the oceans at depths between 1000 and 4000 meters deep.

Bathypelagic is a related term of mesopelagic.

As adjectives the difference between mesopelagic and bathypelagic

is that mesopelagic is describing a pelagic zone of the oceans between the photic epipelagic and the aphotic bathypelagic zones while bathypelagic is of or pertaining to the parts of the oceans at depths between 1000 and 4000 meters deep.

Abyssopelagic is a related term of bathypelagic.

As adjectives the difference between abyssopelagic and bathypelagic

is that abyssopelagic is of or pertaining to the depths of the ocean; of the open waters of the abyssal zone while bathypelagic is of or pertaining to the parts of the oceans at depths between 1000 and 4000 meters deep.

Hadalpelagic is a related term of bathypelagic.

As adjectives the difference between hadalpelagic and bathypelagic

is that hadalpelagic is pertaining or referring to the oceans at depths greater than 6000 meters deep in the suboceanic trenches while bathypelagic is of or pertaining to the parts of the oceans at depths between 1000 and 4000 meters deep.

As nouns the difference between meteorite and mesosiderite

is that meteorite is while mesosiderite is mesosiderite.

As nouns the difference between silicate and mesosiderite

is that silicate is any salt of silica or of one of the silicic acids; any mineral composed of silicates while mesosiderite is a stony meteorite containing roughly equal proportions of silicate and nickel-iron metal.

As a proper noun nickel

is .

As a noun mesosiderite is

mesosiderite.

As nouns the difference between iron and mesosiderite

is that iron is pencil while mesosiderite is mesosiderite.