fourth declension nouns

abortus, us m

abortion

abscessus, us m

abscess

appartus, us m

apparatus

appetitus, us m

appetite

arcus, us m

arch

auditus, us m

sense of hearing

coitus, us m

sexual intercourse

cursus, us m

course of treatment

decubitus, us m

bedsore

decubital ulcer

descensus, us m

descent

ductus, us m

duct

canal

exitus, us m

exit

departure

foetus, us m

fetus

fructus, us m

fruit of a plant

produce

gradus, us m

degree

stage

gustus, us m

sense of taste

habitus, us m

appearance

physique

hiatus, us m

opening

aperture

ictus, us m

blow

hit

strike

infarctus, us m

infarct

infarction

insultus, us m

stroke

meatus, us m

path

passenger

morsus, us m

bite

sting

odoratus, us m

odour

smell

olfactus, us m

sense of smell

partus, us m

birth

plexus, us m

plexus

network of veins/ nerves

processus, us m

process

protuberance

prolapsus, us m

prolapse

downward displacement

pruritus, us m

itch

pulsus, us m

pulse

recessus, us m

recess

concavity

reflexus, us m

reflex.

sensus, us m

sense

feeling

perception

sexus, us m

sex

gender

sinus, us m

cavity

sinus

situs, us m

situation

position

site of something

spiritus, us m

spirit

status, us m

state

conditio0n

Tactus, us m

touch

tractus, us m

tract

track

usus, us m

use

visus, us m

vision

sight

vomitus, us m

vomiting

cornu, us n

horn like structure

gelu, us n

cold

frost

genu, us n

knee