trilete - umbellula
- trilete
- trill
- triller
- trillium
- trilobate
- trilobite larva
- trilocular
- trilophodont
- trim anodization
- trimerous
- trimerous flower
- trimming
- trimming equipment
- trimonoecious
- trimorphous
- trinary system
- trinervate
- trinitrophenylated erythrocyte
- trinity
- trinity violet
- trinnatisect
- trinomial
- trinominal
- Trinoton anserinum
- Trinoton querquedulae
- trioecious
- trioicous
- Trionymus aberrans
- Trionymus multivorus
- Trionymus sacchari
- triovulate
- Trioza alacris
- Trioza apicalis
- Trioza brassicae
- Trioza diospyri
- Trioza nigricortiis
- Trioza remota
- Trioza tremblayi
- Trioza urticae
- trip-madam