sterol

As a noun sterol

is sterol.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between sterol and ester

is that sterol is sterol while ester is ester.

As a noun sterol

is sterol.

As an adjective sterile is

sterile, barren, unprolific, infertile.

As nouns the difference between sterol and triterpenoid

is that sterol is any member of a class of steroids containing a hydroxyl group in the 3-position of the A-ring; they are found in all animal and plant tissue and play an important role in hormone chemistry while triterpenoid is a terpenoid having a C₃₀ skeleton.

As an adjective triterpenoid is

of, or relating to a triterpene or triterpenoid.

As nouns the difference between sterol and terpenoid

is that sterol is any member of a class of steroids containing a hydroxyl group in the 3-position of the A-ring; they are found in all animal and plant tissue and play an important role in hormone chemistry while terpenoid is a very large class of naturally occurring and synthetic organic compounds formally derived from the hydrocarbon isoprene; they include many volatile compounds used in perfume and food flavours, turpentine, the steroids, the carotene pigments and rubber.

As nouns the difference between sterol and wax

is that sterol is sterol while wax is beeswax or wax can be (rare) the process of growing or wax can be (dated|colloquial) an outburst of anger.

As an adjective wax is

made of wax.

As a verb wax is

to apply wax to (something, such as a shoe, a floor, a car, or an apple), usually to make it shiny or wax can be to increasingly assume the specified characteristic, become.

As a noun sterol is

sterol.

Cholesteroid is likely misspelled.

Cholesteroid has no English definition.

As a noun sterol

is any member of a class of steroids containing a hydroxyl group in the 3-position of the A-ring; they are found in all animal and plant tissue and play an important role in hormone chemistry.

As nouns the difference between sterol and carotenoid

is that sterol is sterol while carotenoid is (organic chemistry) any of a class of yellow to red plant pigments including the carotenes and xanthophylls.

As an adjective carotenoid is

(organic chemistry) of or relating to such a class of pigments.