tetra-, tetr-

(Greek: four; a number used as a prefix)

rotundo-tetragonal
tessaraglot, tetraglot
1. Containing, written in, or relating to four languages.
2. Speaking, or versed in, four languages.
tetrabasic
Having four replaceable hydrogen atoms, said of an acid or acid salt.
tetrablastic
Having four germinal layers: the ectoderm, endoderm, and two musodermic layers.
tetrabrach
tetrabrachius
1. An individual with four arms.
2. A deformed fetus with four arms.
tetrabranchiate
tetracaine hydrochloride
A local anesthetic agent used topically and by infiltration.
tetracanth
tetracerous
tetrachanthous
Having four spines, as a fish, etc., or thorns in groups of four.
tetracheirus, tetrachirus
A deformed fetus with four hands.
tetrachloride
Any compound that contains four chlorine atoms per molecule.
tetrachord
1. The basis of a variety of ancient musical scales, consisting of four notes, with an interval of a perfect fourth between the highest and lowest notes.
2. A group of four musical notes, the first and last of which form a perfect fourth, used principally in ancient Greek music.
tetracid
Referring to four hydrogen atoms replaceable by basic atoms or radicals; said of acids.

Cross references of word families that are related, partially or totally, to: "four, fourth": quadri-; quatr-; tessara-.