NOUNS WITH LATIN AND GREEK
PLURALS
THERE ARE SOME NOUNS IN ENGLISH OF LATIN AND GREEN
ORIGIN WHICH DO NOT FORM PLURAL BY ADDING AN –S. THEY
ARE VERY COMMON IN THE LANGUAGE OF SCIENCE.

Nouns ending in –us with plurals ending in –i.
Singular
NUCLEUS = jezgro
Plural
NUCLEI
RADIUS = poluprecnik
RADII
FUNGUS = gljivica
FUNGI
FOCUS = ziza, sredist
FOCI

Nouns ending in –is with plurals ending in –es.
Singular
Plural
BASIS = osnova
BASES
THESIS = teza
THESES
AXIS = osa , osovina
AXES
INDEX
INDICES
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Nouns ending in –a with plurals ending in –ae.
Singular
Plural
ANTENNA = antena
ANTENNAE
FORMULA = formula
FORMULAE
Nouns ending in –um with plurals ending in –a.
Singular
Plural
DATUM = podatak
DATA
MEDIUM = sredstvo,
posrednik, medij
STRATUM = sloj
MEDIA
STRATA

Nouns ending in –on with plurals ending in –a.
Singular
Plural
PHENOMENON = fenomen,
pojava
CRITERION = kriterijum
PHENOMENA
CRITERIA
USE THE CORRECT FORM OF THE NOUN IN
BRACKETS.
___________ (nucleus) are located in the centre of
the atoms.
 The __________ (radius) of electrons are
extremely small.
 Orthorhombic system is characterized by three
unequal _________ (axis).
 Lavoisier explained a number of chemical
________ (phenomenon).
 Geological _________ (stratum) are visible in
some canyons.
 In order to become laws all _____________
(hypothesis) must be experimentally proved.

USE THE CORRECT FORM OF THE NOUN IN
BRACKETS.
Nuclei are located in the centre of the atoms.
 The radii of electrons are extremely small.
 Orthorhombic system is characterized by three
unequal axes.
 Lavoisier explained a number of chemical
phenomena.
 Geological strata are visible in some canyons.
 In order to become laws all hypotheses must be
experimentally proved.
