13-Letter Words Start with 'ther'

There are 18 13-letter words that start with 'ther'.

theriomorphic	thermochemist
thermocouples	thermodynamic
thermoelement	thermoforming
thermographer	thermographic
thermometries	thermonuclear
thermophilous	thermoplastic
thermosetting	thermospheres
thermospheric	thermostating
thermostatted	thermotropism

Note: These 18 13-letter words that start with 'ther' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with therm, there, thera, theri, thero.

5-letter words start with 'ther' (2)
6-letter words start with 'ther' (3)
7-letter words start with 'ther' (17)
8-letter words start with 'ther' (11)
9-letter words start with 'ther' (19)
10-letter words start with 'ther' (14)
11-letter words start with 'ther' (24)
12-letter words start with 'ther' (21)
13-letter words start with 'ther' (18)
14-letter words start with 'ther' (18)
15-letter words start with 'ther' (12)