dr

As an initialism dr

is (pathology).

As a noun prof is

an exam, an examination.

As a noun taxonomy

is the science or the technique used to make a classification.

As an initialism dr is

(pathology).

As nouns the difference between droplet and dr

is that droplet is a very small drop while Dr is doctor, a title used before a doctor's name or surname (Dr Jane Doe, Dr Doe.

As an initialism DR is

initialism of lang=en used to refer to strains of tuberculosis, lang=en.

As nouns the difference between dr and doc

is that dr is doctor, a title used before a doctor's name or surname (Dr Jane Doe, Dr Doe while doc is a doctor.

As initialisms the difference between dr and doc

is that dr is initialism of lang=en used to refer to strains of tuberculosis, lang=en while DOC is drug of choice.

As a proper noun Doc is

a nickname for a medical doctor, a person with an advanced educational degree, or a learned person.

Mdr is a hyponym of dr.

Mdr is a hypernym of dr.

In pathology terms the difference between dr and mdr

is that dr is initialism of lang=en used to refer to strains of tuberculosis, lang=en while mdr is initialism of multi-drug resistant used to refer to strains of tuberculosis, lang=en.

As a noun Dr

is doctor, a title used before a doctor's name or surname (Dr Jane Doe, Dr Doe.