- louse, sucking louse - wingless usually flattened blood-sucking insect parasitic on warm-blooded animals
--1 is a kind of insect
--1 is a member of Anoplura, order Anoplura
--1 has particulars:common louse, Pediculus humanus; head louse, Pediculus capitis; body louse, cootie, Pediculus corporis; crab louse, pubic louse, crab, Phthirius pubis - worm, louse, insect, dirt ball - a person who has a nasty or unethical character undeserving of respect
--2 is a kind of unpleasant person, disagreeable person
- plant louse, louse - any of several small insects especially aphids that feed by sucking the juices from plants
--3 is a kind of homopterous insect, homopteran
--3 has particulars:aphid; adelgid; grape louse, grape phylloxera, Phylloxera vitifoleae; jumping plant louse, psylla, psyllid; oak blight - bird louse, biting louse, louse - wingless insect with mouth parts adapted for biting; mostly parasitic on birds
--4 is a kind of insect
--4 is a member of Mallophaga, order Mallophaga
--4 has particulars:chicken louse, shaft louse, Menopon palladum, Menopon gallinae