12-letter words containing som
- stereoisomer — any of two or more isomers exhibiting stereoisomerism.
- synaptosomal — pertaining to a synaptosome
- unburdensome — oppressively heavy; onerous.
- unhandsomely — unattractively
- x chromosome — a sex chromosome of humans and most mammals that determines femaleness when paired with another X chromosome and that occurs singly in males.
- x-chromosome — a sex chromosome of humans and most mammals that determines femaleness when paired with another X chromosome and that occurs singly in males.
- y chromosome — a sex chromosome of humans and most mammals that is present only in males and is paired with an X chromosome.
- y-chromosome — a sex chromosome of humans and most mammals that is present only in males and is paired with an X chromosome.