As a proper noun crystal

is .

As a noun druse is

.

As nouns the difference between aggregation and druse

is that aggregation is the act of collecting together (aggregating) while druse is an inner surface with a crust of tiny crystals.

As nouns the difference between calcium and druse

is that calcium is calcium while druse is .

As nouns the difference between tentacle and hippocrepian

is that tentacle is an elongated, boneless, flexible organ or limb of some animals, such as the octopus and squid while hippocrepian is one of an order of freshwater bryozoa, in which the tentacles are on a lophophore, shaped like a horseshoe.

As nouns the difference between lophophore and hippocrepian

is that lophophore is (zoology) a feeding organ of brachiopods, bryozoans and phoronids while hippocrepian is one of an order of freshwater bryozoa, in which the tentacles are on a lophophore, shaped like a horseshoe.

As nouns the difference between horseshoe and hippocrepian

is that horseshoe is the u-shaped metallic shoe of a horse while hippocrepian is one of an order of freshwater bryozoa, in which the tentacles are on a lophophore, shaped like a horseshoe.

As a verb horseshoe

is to apply horseshoes to a horse.

As a noun horseshoe

is the u-shaped metallic shoe of a horse.

As a verb horseshoe

is to apply horseshoes to a horse.

As an adjective hippocrepiform is

shaped like a horseshoe.

As a noun horse

is a poker variant consisting of five different poker variants, with the rules changing from one variant to the next after every hand or horse can be (variant of basketball).

As an adjective hippoid is

of, or pertaining to, horses.

As nouns the difference between concretion and hippolith

is that concretion is concretion while hippolith is a concretion, or kind of bezoar, from the intestines of a horse.

As nouns the difference between bezoar and hippolith

is that bezoar is a mass, usually of hair or undigested vegetable matter, found in an animal's intestines; a hairball while hippolith is a concretion, or kind of bezoar, from the intestines of a horse.