Singular Plural Forms
Rules to form singular plural forms
To form the plural form of a medical term, you will have to learn some pluralizing rules.
You will add –s to words ending in vowels or consonant except, s, x, z, or y. You will add –es to words ending in s, x, or z. You will add –ies to words in –y (remove the y) preceded by a consonant. When the word ends in –y preceded by a vowel, you will use –s.
Example: reflex will become reflexes
You will add –e to Latin terms ending in –a. You will add-i to Latin words ending in –us(remove the-us)
Example: fossa will become fossae
You will add –a to Greek words ending in –on(remove –on); Add –a to Latin words ending in –um(remove –um)
Example: ganglion will become ganglia
You will change –sis to –ses in Greek words ending with -sis
Example: neurosis will become neuroses
Here is a table to help you with the rules:
|Words ending in a||bursa||bursae|
|Words ending in itis||arthritis||arthritides|
|Words ending in ex(or ix)||appendix||appendices|
|Words ending in on||ganglion||ganglia|
|Words ending in um||ovum||ova|
|Words ending in us||alveolus||alveoli|
|Words ending in nx||phalanx||phalanges|
|Words ending in is||diagnosis||diagnoses|
Plural forms may seem a bit confusing. Once you learn the rules, you will be able to identify the correct spelling quickly.